added OmniAuth gems

Gemfile

@@ -40,6 +40,10 @@ gem 'sinatra', require: false
 
 gem 'questiongenerator', git: 'https://github.com/justask/questiongenerator.git'
 
+# OmniAuth and providers
+gem 'omniauth'
+gem 'omniauth-twitter'
+
 group :development do
   gem 'spring'
 end

Gemfile.lock

@@ -91,6 +91,7 @@ GEM
       rails
     haml (4.0.6)
       tilt
+    hashie (3.3.2)
     hike (1.2.3)
     hitimes (1.2.2)
     http (0.6.3)
@@ -129,6 +130,16 @@ GEM
     nokogiri (1.6.5)
       mini_portile (~> 0.6.0)
     nprogress-rails (0.1.6.3)
+    oauth (0.4.7)
+    omniauth (1.2.2)
+      hashie (>= 1.2, < 4)
+      rack (~> 1.0)
+    omniauth-oauth (1.0.1)
+      oauth
+      omniauth (~> 1.0)
+    omniauth-twitter (1.1.0)
+      multi_json (~> 1.3)
+      omniauth-oauth (~> 1.0)
     orm_adapter (0.5.0)
     pg (0.17.1)
     poltergeist (1.5.1)
@@ -302,6 +313,8 @@ DEPENDENCIES
   jquery-turbolinks
   mysql2
   nprogress-rails
+  omniauth
+  omniauth-twitter
   pg
   poltergeist
   questiongenerator!