Fix Gemfile

Gemfile

@@ -57,7 +57,6 @@ gem 'mime-types', '~> 3.1'
 gem 'nokogiri', '~> 1.8'
 gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.3'
-gem 'omniauth', '~> 1.6'
 gem 'omniauth_qiita', '~> 0.1'
 gem 'ostatus2', '~> 2.0'
 gem 'ox', '~> 2.8'

Gemfile.lock

@@ -176,7 +176,7 @@ GEM
     fabrication (2.18.0)
     faker (1.8.4)
       i18n (~> 0.5)
-    faraday (0.14.0)
+    faraday (0.12.2)
       multipart-post (>= 1.2, < 3)
     fast_blank (1.0.0)
     fastimage (2.1.1)
@@ -312,6 +312,7 @@ GEM
     minitest (5.11.3)
     msgpack (1.1.0)
     multi_json (1.12.2)
+    multi_xml (0.6.0)
     multipart-post (2.0.0)
     necromancer (0.4.0)
     net-ldap (0.16.1)
@@ -342,6 +343,9 @@ GEM
       addressable (~> 2.3)
       nokogiri (~> 1.5)
       omniauth (~> 1.2)
+    omniauth-oauth2 (1.5.0)
+      oauth2 (~> 1.1)
+      omniauth (~> 1.2)
     omniauth-saml (1.10.0)
       omniauth (~> 1.3, >= 1.3.2)
       ruby-saml (~> 1.7)
@@ -520,7 +524,7 @@ GEM
     scss_lint (0.56.0)
       rake (>= 0.9, < 13)
       sass (~> 3.5.3)
-    sentry-raven (2.7.1)
+    sentry-raven (2.7.3)
       faraday (>= 0.7.6, < 1.0)
     sidekiq (5.0.5)
       concurrent-ruby (~> 1.0)