chore(*): Update typescript to 2.5.3

Author: christopherthielen

package.json

@@ -91,7 +91,7 @@
     "shelljs": "^0.7.0",
     "shx": "^0.1.4",
     "tslint": "^4.5.1",
-    "typescript": "~2.4.0",
+    "typescript": "2.5.3",
     "webpack": "^1.13.3"
   }
 }

yarn.lock

@@ -3454,9 +3454,9 @@ typedarray@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-typescript@~2.4.0:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.4.1.tgz#c3ccb16ddaa0b2314de031e7e6fee89e5ba346bc"
+typescript@2.5.3:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.5.3.tgz#df3dcdc38f3beb800d4bc322646b04a3f6ca7f0d"
 
 uglify-js@^2.6, uglify-js@^2.6.1:
   version "2.8.29"