chore(): increment ionic-app-lib because it was missed.

Author: jthoms1

package.json

@@ -67,7 +67,7 @@
     "gulp": "3.8.8",
     "gulp-util": "3.0.7",
     "inquirer": "0.11.2",
-    "ionic-app-lib": "2.0.0-beta.19",
+    "ionic-app-lib": "2.0.0-beta.20",
     "moment": "2.11.1",
     "open": "0.0.5",
     "optimist": "0.6.0",