set proper dependencies for electron-builder

yarn.lock

@@ -591,7 +591,7 @@ builder-util-runtime@4.0.4:
     fs-extra-p "^4.5.0"
     sax "^1.2.4"
 
-builder-util-runtime@^4.0.4, builder-util-runtime@^4.0.5:
+builder-util-runtime@^4.0.4, builder-util-runtime@^4.0.5, builder-util-runtime@~4.0.3:
   version "4.0.5"
   resolved "https://registry.yarnpkg.com/builder-util-runtime/-/builder-util-runtime-4.0.5.tgz#5340cf9886b9283ea6e5b20dc09b5e3e461aef62"
   dependencies:
@@ -1030,9 +1030,9 @@ copy-webpack-plugin@^4.2.0:
     p-limit "^1.0.0"
     serialize-javascript "^1.4.0"
 
-core-js@^2.4.1:
-  version "2.5.3"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
+core-js@2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
@@ -1486,6 +1486,10 @@ electron-download@^3.0.1:
     semver "^5.3.0"
     sumchecker "^1.2.0"
 
+electron-is-dev@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/electron-is-dev/-/electron-is-dev-0.3.0.tgz#14e6fda5c68e9e4ecbeff9ccf037cbd7c05c5afe"
+
 electron-osx-sign@0.4.8:
   version "0.4.8"
   resolved "https://registry.yarnpkg.com/electron-osx-sign/-/electron-osx-sign-0.4.8.tgz#f0b9fadded9e1e54ec35fa89877b5c6c34c7bc40"
@@ -1539,6 +1543,20 @@ electron-to-chromium@^1.2.7:
   version "1.3.33"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.33.tgz#bf00703d62a7c65238136578c352d6c5c042a545"
 
+electron-updater@2.20.1:
+  version "2.20.1"
+  resolved "https://registry.yarnpkg.com/electron-updater/-/electron-updater-2.20.1.tgz#3d2714a3e472fbf198f6053daf8fd12209101aa2"
+  dependencies:
+    bluebird-lst "^1.0.5"
+    builder-util-runtime "~4.0.3"
+    electron-is-dev "^0.3.0"
+    fs-extra-p "^4.5.0"
+    js-yaml "^3.10.0"
+    lazy-val "^1.0.3"
+    lodash.isequal "^4.5.0"
+    semver "^5.5.0"
+    source-map-support "^0.5.2"
+
 electron@1.8.2:
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/electron/-/electron-1.8.2.tgz#a817cd733c2972b3c7cc4f777caf6e424b88014d"
@@ -2822,7 +2840,7 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
-keytar@^4.1.0:
+keytar@4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/keytar/-/keytar-4.1.0.tgz#9e3933e489d656de1a868e1293709313044989d7"
   dependencies:
@@ -2949,6 +2967,10 @@ lodash.clonedeep@^4.3.2:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
 
+lodash.isequal@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.isequal/-/lodash.isequal-4.5.0.tgz#415c4478f2bcc30120c22ce10ed3226f7d3e18e0"
+
 lodash.memoize@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
@@ -4437,7 +4459,7 @@ run-queue@^1.0.0, run-queue@^1.0.3:
   dependencies:
     aproba "^1.1.1"
 
-rxjs@^5.1.1, rxjs@^5.5.6:
+rxjs@5.5.6, rxjs@^5.1.1:
   version "5.5.6"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.6.tgz#e31fb96d6fd2ff1fd84bcea8ae9c02d007179c02"
   dependencies:
@@ -4646,7 +4668,7 @@ source-map-resolve@^0.5.0:
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
-source-map-support@^0.5.3:
+source-map-support@^0.5.2, source-map-support@^0.5.3:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.3.tgz#2b3d5fff298cfa4d1afd7d4352d569e9a0158e76"
   dependencies:
@@ -5512,6 +5534,6 @@ yauzl@^2.8.0:
     buffer-crc32 "~0.2.3"
     fd-slicer "~1.0.1"
 
-zone.js@^0.8.19:
-  version "0.8.20"
-  resolved "https://registry.yarnpkg.com/zone.js/-/zone.js-0.8.20.tgz#a218c48db09464b19ff6fc8f0d4bb5b1046e185d"
+zone.js@0.8.19:
+  version "0.8.19"
+  resolved "https://registry.yarnpkg.com/zone.js/-/zone.js-0.8.19.tgz#a4b522cd9e8b7b616a638c297d720d4c7f292f71"