Update jquery-atwho-rails gem

Fixes #1860

Gemfile

@@ -100,7 +100,7 @@ group :assets do
   gem "therubyracer"
 
   gem 'chosen-rails',     "0.9.8"
-  gem 'jquery-atwho-rails', "0.1.6"
+  gem 'jquery-atwho-rails', "0.1.7"
   gem "jquery-rails",     "2.1.3"
   gem "jquery-ui-rails",  "2.0.2"
   gem "modernizr",        "2.6.2"

Gemfile.lock

@@ -227,7 +227,7 @@ GEM
     httpauth (0.2.0)
     i18n (0.6.1)
     journey (1.0.4)
-    jquery-atwho-rails (0.1.6)
+    jquery-atwho-rails (0.1.7)
     jquery-rails (2.1.3)
       railties (>= 3.1.0, < 5.0)
       thor (~> 0.14)
@@ -481,7 +481,7 @@ DEPENDENCIES
   guard-spinach
   haml-rails (~> 0.3.5)
   httparty
-  jquery-atwho-rails (= 0.1.6)
+  jquery-atwho-rails (= 0.1.7)
   jquery-rails (= 2.1.3)
   jquery-ui-rails (= 2.0.2)
   kaminari (~> 0.14.1)