bump(electron): bump electron to 1.4.15

.travis.yml

@@ -17,7 +17,7 @@ addons:
     - xvfb
     - rpm
     - libxext-dev
-    - libxtst-dev 
+    - libxtst-dev
     - libxkbfile-dev
 
 branches:

package.json

@@ -12,7 +12,7 @@
   "bugs": {
     "url": "https://github.com/nylas/nylas-mail/issues"
   },
-  "electronVersion": "1.4.14",
+  "electronVersion": "1.4.15",
   "dependencies": {
     "analytics-node": "2.x.x",
     "async": "^0.9",
@@ -32,8 +32,8 @@
     "coffeestack": "^1.1",
     "color": "^0.7.3",
     "debug": "2.4.5",
-    "electron": "1.4.12",
-    "electron-spellchecker": "1.0.0",
+    "electron": "1.4.15",
+    "electron-spellchecker": "1.0.1",
     "emissary": "^1.3.1",
     "emoji-data": "^0.2.0",
     "enzyme": "^2.2.0",