maintain data store in background

1 files changed, 569 insertions, 20 deletions

diff --git a/package-lock.json b/package-lock.json
index 91d6f99..fa313c7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1169,6 +1169,16 @@
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+    "JSONStream": {
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+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.5.tgz",
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+      "dev": true,
+      "requires": {
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+        "through": ">=2.2.7 <3"
+      }
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       "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.0.tgz",
@@ -1217,6 +1227,26 @@
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.1.tgz",
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+    "acorn-node": {
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+      "resolved": "https://registry.npmjs.org/acorn-node/-/acorn-node-1.6.2.tgz",
+      "integrity": "sha512-rIhNEZuNI8ibQcL7ANm/mGyPukIaZsRNX9psFNQURyJW0nu6k8wjSDld20z6v2mDBWqX13pIEnk9gGZJHIlEXg==",
+      "dev": true,
+      "requires": {
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+        "acorn-dynamic-import": "^4.0.0",
+        "acorn-walk": "^6.1.0",
+        "xtend": "^4.0.1"
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+          "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz",
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+        }
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     "acorn-walk": {
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       "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.1.1.tgz",
@@ -2346,6 +2376,12 @@
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       }
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+    "babelify": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/babelify/-/babelify-10.0.0.tgz",
+      "integrity": "sha512-X40FaxyH7t3X+JFAKvb1H9wooWKLRCi8pg3m8poqtdZaIng+bjzp9RvKQCvRjF9isHiPkXspbbXT/zwXLtwgwg==",
+      "dev": true
+    },
     "babylon": {
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       "resolved": "https://registry.npmjs.org/babylon/-/babylon-6.18.0.tgz",
@@ -2547,6 +2583,20 @@
       "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
       "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
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+    "browser-pack": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/browser-pack/-/browser-pack-6.1.0.tgz",
+      "integrity": "sha512-erYug8XoqzU3IfcU8fUgyHqyOXqIE4tUTTQ+7mqUjQlvnXkOO6OlT9c/ZoJVHYoAaqGxr09CN53G7XIsO4KtWA==",
+      "dev": true,
+      "requires": {
+        "JSONStream": "^1.0.3",
+        "combine-source-map": "~0.8.0",
+        "defined": "^1.0.0",
+        "safe-buffer": "^5.1.1",
+        "through2": "^2.0.0",
+        "umd": "^3.0.0"
+      }
+    },
     "browser-process-hrtime": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/browser-process-hrtime/-/browser-process-hrtime-0.1.3.tgz",
@@ -2567,6 +2617,116 @@
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+    "browserify": {
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+      "resolved": "https://registry.npmjs.org/browserify/-/browserify-16.2.3.tgz",
+      "integrity": "sha512-zQt/Gd1+W+IY+h/xX2NYMW4orQWhqSwyV+xsblycTtpOuB27h1fZhhNQuipJ4t79ohw4P4mMem0jp/ZkISQtjQ==",
+      "dev": true,
+      "requires": {
+        "JSONStream": "^1.0.3",
+        "assert": "^1.4.0",
+        "browser-pack": "^6.0.1",
+        "browser-resolve": "^1.11.0",
+        "browserify-zlib": "~0.2.0",
+        "buffer": "^5.0.2",
+        "cached-path-relative": "^1.0.0",
+        "concat-stream": "^1.6.0",
+        "console-browserify": "^1.1.0",
+        "constants-browserify": "~1.0.0",
+        "crypto-browserify": "^3.0.0",
+        "defined": "^1.0.0",
+        "deps-sort": "^2.0.0",
+        "domain-browser": "^1.2.0",
+        "duplexer2": "~0.1.2",
+        "events": "^2.0.0",
+        "glob": "^7.1.0",
+        "has": "^1.0.0",
+        "htmlescape": "^1.1.0",
+        "https-browserify": "^1.0.0",
+        "inherits": "~2.0.1",
+        "insert-module-globals": "^7.0.0",
+        "labeled-stream-splicer": "^2.0.0",
+        "mkdirp": "^0.5.0",
+        "module-deps": "^6.0.0",
+        "os-browserify": "~0.3.0",
+        "parents": "^1.0.1",
+        "path-browserify": "~0.0.0",
+        "process": "~0.11.0",
+        "punycode": "^1.3.2",
+        "querystring-es3": "~0.2.0",
+        "read-only-stream": "^2.0.0",
+        "readable-stream": "^2.0.2",
+        "resolve": "^1.1.4",
+        "shasum": "^1.0.0",
+        "shell-quote": "^1.6.1",
+        "stream-browserify": "^2.0.0",
+        "stream-http": "^2.0.0",
+        "string_decoder": "^1.1.1",
+        "subarg": "^1.0.0",
+        "syntax-error": "^1.1.1",
+        "through2": "^2.0.0",
+        "timers-browserify": "^1.0.1",
+        "tty-browserify": "0.0.1",
+        "url": "~0.11.0",
+        "util": "~0.10.1",
+        "vm-browserify": "^1.0.0",
+        "xtend": "^4.0.0"
+      },
+      "dependencies": {
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+          "integrity": "sha512-c+Ko0loDaFfuPWiL02ls9Xd3GO3cPVmUobQ6t3rXNUk304u6hGq+8N/kFi+QEIKhzK3uwolVhLzszmfLmMLnqg==",
+          "dev": true,
+          "requires": {
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+            "ieee754": "^1.1.4"
+          }
+        },
+        "events": {
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+          "resolved": "https://registry.npmjs.org/events/-/events-2.1.0.tgz",
+          "integrity": "sha512-3Zmiobend8P9DjmKAty0Era4jV8oJ0yGYe2nJJAxgymF9+N8F2m0hhZiMoWtcfepExzNKZumFU3ksdQbInGWCg==",
+          "dev": true
+        },
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
+          "dev": true
+        },
+        "timers-browserify": {
+          "version": "1.4.2",
+          "resolved": "https://registry.npmjs.org/timers-browserify/-/timers-browserify-1.4.2.tgz",
+          "integrity": "sha1-ycWLV1voQHN1y14kYtrO50NZ9B0=",
+          "dev": true,
+          "requires": {
+            "process": "~0.11.0"
+          }
+        },
+        "tty-browserify": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/tty-browserify/-/tty-browserify-0.0.1.tgz",
+          "integrity": "sha512-C3TaO7K81YvjCgQH9Q1S3R3P3BtN3RIM8n+OvX4il1K1zgE8ZhI0op7kClgkxtutIE8hQrcrHBXvIheqKUUCxw==",
+          "dev": true
+        },
+        "util": {
+          "version": "0.10.4",
+          "resolved": "https://registry.npmjs.org/util/-/util-0.10.4.tgz",
+          "integrity": "sha512-0Pm9hTQ3se5ll1XihRic3FDIku70C+iHUdT/W926rSgHV5QgXsYbKZN8MSC3tJtSkhuROzvsQjAaFENRXr+19A==",
+          "dev": true,
+          "requires": {
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+        },
+        "vm-browserify": {
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+          "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-1.1.0.tgz",
+          "integrity": "sha512-iq+S7vZJE60yejDYM0ek6zg308+UZsdtPExWP9VZoCFCz1zkJoXFnAX7aZfd/ZwrkidzdUZL0C/ryW+JwAiIGw==",
+          "dev": true
+        }
+      }
+    },
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@@ -2747,6 +2907,12 @@
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+    "cached-path-relative": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/cached-path-relative/-/cached-path-relative-1.0.2.tgz",
+      "integrity": "sha512-5r2GqsoEb4qMTTN9J+WzXfjov+hjxT+j3u5K+kIVNIwAd99DLCJE9pBIMP1qVeybV6JiijL385Oz0DcYxfbOIg==",
+      "dev": true
+    },
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@@ -3132,6 +3298,32 @@
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+    "combine-source-map": {
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+      "resolved": "https://registry.npmjs.org/combine-source-map/-/combine-source-map-0.8.0.tgz",
+      "integrity": "sha1-pY0N8ELBhvz4IqjoAV9UUNLXmos=",
+      "dev": true,
+      "requires": {
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+        "inline-source-map": "~0.6.0",
+        "lodash.memoize": "~3.0.3",
+        "source-map": "~0.5.3"
+      },
+      "dependencies": {
+        "convert-source-map": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.1.3.tgz",
+          "integrity": "sha1-SCnId+n+SbMWHzvzZziI4gRpmGA=",
+          "dev": true
+        },
+        "lodash.memoize": {
+          "version": "3.0.4",
+          "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-3.0.4.tgz",
+          "integrity": "sha1-LcvSwofLwKVcxCMovQxzYVDVPj8=",
+          "dev": true
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@@ -4032,6 +4224,12 @@
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+    "defined": {
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+      "resolved": "https://registry.npmjs.org/defined/-/defined-1.0.0.tgz",
+      "integrity": "sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=",
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@@ -4081,6 +4279,18 @@
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+      "resolved": "https://registry.npmjs.org/deps-sort/-/deps-sort-2.0.0.tgz",
+      "integrity": "sha1-CRckkC6EZYJg65EHSMzNGvbiH7U=",
+      "dev": true,
+      "requires": {
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+        "shasum": "^1.0.0",
+        "subarg": "^1.0.0",
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@@ -4137,6 +4347,17 @@
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+      "dev": true,
+      "requires": {
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+        "defined": "^1.0.0",
+        "minimist": "^1.1.1"
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@@ -4300,6 +4521,15 @@
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       "integrity": "sha1-rOb/gIwc5mtX0ev5eXessCM0z8E="
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+    "duplexer2": {
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+      "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.1.4.tgz",
+      "integrity": "sha1-ixLauHjA1p4+eJEFFmKjL8a93ME=",
+      "dev": true,
+      "requires": {
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@@ -5886,7 +6116,8 @@
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+          "bundled": true,
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@@ -6251,7 +6482,8 @@
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+          "bundled": true,
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@@ -6299,6 +6531,7 @@
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@@ -6337,11 +6570,13 @@
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         "wrappy": {
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+          "bundled": true,
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@@ -6365,6 +6600,12 @@
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       "integrity": "sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc="
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+    "get-assigned-identifiers": {
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+      "dev": true
+    },
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@@ -6838,6 +7079,12 @@
         "util.promisify": "1.0.0"
       }
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+    "htmlescape": {
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+      "resolved": "https://registry.npmjs.org/htmlescape/-/htmlescape-1.1.1.tgz",
+      "integrity": "sha1-OgPtwiFLyjtmQko+eVk0lQnLA1E=",
+      "dev": true
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@@ -7338,6 +7585,15 @@
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+      "resolved": "https://registry.npmjs.org/inline-source-map/-/inline-source-map-0.6.2.tgz",
+      "integrity": "sha1-+Tk0ccGKedFyT4Y/o4tYY3Ct4qU=",
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@@ -7373,6 +7629,24 @@
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+      "dev": true,
+      "requires": {
+        "JSONStream": "^1.0.3",
+        "acorn-node": "^1.5.2",
+        "combine-source-map": "^0.8.0",
+        "concat-stream": "^1.6.1",
+        "is-buffer": "^1.1.0",
+        "path-is-absolute": "^1.0.1",
+        "process": "~0.11.0",
+        "through2": "^2.0.0",
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       "integrity": "sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM="
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+      "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-1.3.1.tgz",
+      "integrity": "sha1-P02uSpH6wxX3EGL4UhzCOfE2YoA=",
+      "dev": true
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+    "labeled-stream-splicer": {
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+      "resolved": "https://registry.npmjs.org/labeled-stream-splicer/-/labeled-stream-splicer-2.0.1.tgz",
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+      "dev": true,
+      "requires": {
+        "inherits": "^2.0.1",
+        "isarray": "^2.0.4",
+        "stream-splicer": "^2.0.0"
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+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.4.tgz",
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+          "dev": true
+        }
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@@ -9167,6 +9466,29 @@
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