Upgrade to and begin testing Paperclip 5.0.0beta1

Gemfile

@@ -29,7 +29,7 @@ gem 'doorkeeper', '~> 3.1'
 # ActiveRecord
 gem 'rails-observers', '~> 0.1.2'
 gem 'awesome_nested_set', '~> 3.0'
-gem 'paperclip', git: 'git://github.com/thoughtbot/paperclip', branch: 'master'
+gem 'paperclip', '~> 5.0.0.beta1'
 gem 'paperclip-optimizer', '~> 2.0'
 gem 'acts-as-taggable-on', '~> 3.5'
 gem 'bcrypt', '~> 3.1.11'

Gemfile.lock

@@ -7,18 +7,6 @@ GIT
       execjs
       rails (>= 3.1)
 
-GIT
-  remote: git://github.com/thoughtbot/paperclip
-  revision: e60f00027704298455c039e111d96bcf46e12822
-  branch: master
-  specs:
-    paperclip (4.3.1)
-      activemodel (>= 3.2.0)
-      activesupport (>= 3.2.0)
-      cocaine (~> 0.5.5)
-      mime-types
-      mimemagic (~> 0.3.0)
-
 GIT
   remote: git://github.com/toastercup/grape-kaminari
   revision: 8d3f48e04c35cd6b85d4707a5b7f7356d305bf8c
@@ -406,6 +394,12 @@ GEM
       nenv (~> 0.1)
       shellany (~> 0.0)
     orm_adapter (0.5.0)
+    paperclip (5.0.0.beta1)
+      activemodel (>= 4.2.0)
+      activesupport (>= 4.2.0)
+      cocaine (~> 0.5.5)
+      mime-types
+      mimemagic (~> 0.3.0)
     paperclip-optimizer (2.0.0)
       image_optim (~> 0.19)
       paperclip (>= 3.4)
@@ -641,7 +635,7 @@ DEPENDENCIES
   ng-rails-csrf (~> 0.1.0)
   ngannotate-rails!
   nokogiri
-  paperclip!
+  paperclip (~> 5.0.0.beta1)
   paperclip-optimizer (~> 2.0)
   paranoia (~> 2.1)
   pg (~> 0.18.4)