Update poltergeist and database_cleaner

Gemfile

@@ -187,7 +187,7 @@ group :development, :test do
   gem 'rb-inotify', require: linux_only('rb-inotify')
 
   # PhantomJS driver for Capybara
-  gem 'poltergeist', '~> 1.3.0'
+  gem 'poltergeist', '~> 1.4.1'
 
   gem 'spork', '~> 1.0rc'
   gem 'jasmine'

Gemfile.lock

@@ -72,6 +72,7 @@ GEM
       railties (>= 3.0)
       sass-rails (>= 3.2)
     chunky_png (1.2.8)
+    cliver (0.2.1)
     code_analyzer (0.3.2)
       sexp_processor
     coderay (1.0.9)
@@ -102,7 +103,7 @@ GEM
     d3_rails (3.1.10)
       railties (>= 3.1.0)
     daemons (1.1.9)
-    database_cleaner (1.0.1)
+    database_cleaner (1.1.1)
     debug_inspector (0.0.2)
     descendants_tracker (0.0.1)
     devise (2.2.5)
@@ -132,8 +133,6 @@ GEM
       multipart-post (~> 1.1)
     faraday_middleware (0.9.0)
       faraday (>= 0.7.4, < 0.9)
-    faye-websocket (0.4.7)
-      eventmachine (>= 0.12.0)
     ffaker (1.16.1)
     ffi (1.9.0)
     fog (1.3.1)
@@ -275,7 +274,7 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     method_source (0.8.1)
-    mime-types (1.23)
+    mime-types (1.25)
     minitest (4.7.4)
     modernizr (2.6.2)
       sprockets (~> 2.0)
@@ -315,10 +314,11 @@ GEM
       omniauth-oauth (~> 1.0)
     orm_adapter (0.4.0)
     pg (0.15.1)
-    poltergeist (1.3.0)
+    poltergeist (1.4.1)
       capybara (~> 2.1.0)
-      faye-websocket (>= 0.4.4, < 0.5.0)
-      http_parser.rb (~> 0.5.3)
+      cliver (~> 0.2.1)
+      multi_json (~> 1.0)
+      websocket-driver (>= 0.2.0)
     polyglot (0.3.3)
     posix-spawn (0.3.6)
     pry (0.9.12.2)
@@ -534,6 +534,7 @@ GEM
       addressable (>= 2.2.7)
       crack (>= 0.3.2)
     websocket (1.0.7)
+    websocket-driver (0.3.0)
     xpath (2.0.0)
       nokogiri (~> 1.3)
     yajl-ruby (1.1.0)
@@ -599,7 +600,7 @@ DEPENDENCIES
   omniauth-google-oauth2
   omniauth-twitter
   pg
-  poltergeist (~> 1.3.0)
+  poltergeist (~> 1.4.1)
   pry
   quiet_assets (~> 1.0.1)
   rack-mini-profiler