Merge pull request #783 from opf/fix/update_selenium_webdriver_ff_26

[FIX] Update selenium webdriver for FF 26

Gemfile.lock

@@ -13,6 +13,7 @@ GIT
     prototype_legacy_helper (0.0.0)
 
 GEM
+  remote: https://rubygems.org/
   remote: https://rubygems.org/
   specs:
     actionmailer (3.2.16)
@@ -124,7 +125,7 @@ GEM
       railties (>= 3.0.0)
     faker (1.2.0)
       i18n (~> 0.5)
-    ffi (1.9.0)
+    ffi (1.9.3)
     formatador (0.2.4)
     gherkin (2.12.2)
       multi_json (~> 1.3)
@@ -282,7 +283,7 @@ GEM
     rubytree (0.8.3)
       json (>= 1.7.5)
       structured_warnings (>= 0.1.3)
-    rubyzip (0.9.9)
+    rubyzip (1.1.0)
     sass (3.2.9)
     sass-rails (3.2.6)
       railties (~> 3.2.0)
@@ -291,7 +292,7 @@ GEM
     select2-rails (3.3.2)
       sass-rails (>= 3.2)
       thor (~> 0.14)
-    selenium-webdriver (2.34.0)
+    selenium-webdriver (2.39.0)
       childprocess (>= 0.2.5)
       multi_json (~> 1.0)
       rubyzip