Move babel-core/browser-polyfill.min.js from coredeps to shared in bu…

…ild-path.json

Test Plan:
- visit http://localhost:8080/computer-programming/new/pjs in Safari
- draw a shape

Auditors: john, pamela

build-paths.json

@@ -12,8 +12,7 @@
             "bower_components/backbone/backbone.js",
             "bower_components/jed/jed.js",
             "bower_components/bootstrap/js/bootstrap-tab.js",
-            "js/shared/i18n.js",
-            "node_modules/babel-core/browser-polyfill.min.js"
+            "js/shared/i18n.js"
         ],
         "editor_ace_deps": [
             "bower_components/ace-builds/src-noconflict/ace.js",
@@ -70,7 +69,8 @@
             "js/shared/sounds.js",
             "js/shared/record.js",
             "js/shared/config.js",
-            "external/visibly/visibly.js"
+            "external/visibly/visibly.js",
+            "node_modules/babel-core/browser-polyfill.min.js"
         ],
         "output_pjs_deps": [
             "external/processing-js/processing.js",

package.json

@@ -20,7 +20,7 @@
   "homepage": "https://github.com/Khan/live-editor",
   "devDependencies": {
     "async": "^0.9.0",
-    "babel-core": "^5.6.18",
+    "babel-core": "5.6.18",
     "expect.js": "^0.3.1",
     "gulp": "^3.8.6",
     "gulp-bower": "0.0.7",