Remove bless-brunch since we no longer support IE9 (or 10)

config.coffee

@@ -205,8 +205,6 @@ exports.config =
     sass:
       mode: 'native'
       allowCache: true
-    bless:
-      cacheBuster: false
     assetsmanager:
       copyTo:
         'lib/ace': ['node_modules/ace-builds/src-min-noconflict/*']

package.json

@@ -93,7 +93,6 @@
     "after-brunch": "0.0.5",
     "assetsmanager-brunch": "^1.8.1",
     "auto-reload-brunch": "> 1.0 < 1.8",
-    "bless-brunch": "https://github.com/ThomasConner/bless-brunch/tarball/master",
     "bower": "~1.6.4",
     "brunch": "^1.8.5",
     "coffee-script-brunch": "^1.8.3",