Switch to dotenv and update Ruby.

.ruby-version

@@ -1 +1 @@
-2.1.5
+2.2.1

Gemfile

@@ -1,5 +1,7 @@
 source 'http://rubygems.org'
-ruby '2.1.5'
+ruby '2.2.1'
+
+gem 'dotenv-rails', :groups => [:development, :test]
 
 gem 'rails', '~> 4.1.0'
 

Gemfile.lock

@@ -83,6 +83,9 @@ GEM
       warden (~> 1.2.3)
     diff-lcs (1.2.5)
     docile (1.1.5)
+    dotenv (2.0.0)
+    dotenv-rails (2.0.0)
+      dotenv (= 2.0.0)
     dragonfly (1.0.7)
       addressable (~> 2.3)
       multi_json (~> 1.0)
@@ -187,18 +190,18 @@ GEM
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
     mime-types (2.4.3)
-    mini_portile (0.6.1)
+    mini_portile (0.6.2)
     minitest (5.5.0)
-    multi_json (1.10.1)
+    multi_json (1.11.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.1)
     newrelic_rpm (3.9.8.273)
-    nokogiri (1.6.5)
+    nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
     orm_adapter (0.5.0)
     pg (0.17.1)
-    poltergeist (1.5.1)
+    poltergeist (1.6.0)
       capybara (~> 2.1)
       cliver (~> 0.3.1)
       multi_json (~> 1.0)
@@ -214,7 +217,7 @@ GEM
     puma (2.10.2)
       rack (>= 1.1, < 2.0)
     rack (1.5.2)
-    rack-test (0.6.2)
+    rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.8)
       actionmailer (= 4.1.8)
@@ -308,9 +311,9 @@ GEM
     unf_ext (0.0.6)
     warden (1.2.3)
       rack (>= 1.0)
-    websocket-driver (0.5.1)
+    websocket-driver (0.5.3)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.1)
+    websocket-extensions (0.1.2)
     will_paginate (3.0.7)
     xpath (2.0.0)
       nokogiri (~> 1.3)
@@ -327,6 +330,7 @@ DEPENDENCIES
   coffee-rails (~> 4.1.0)
   database_cleaner
   devise
+  dotenv-rails
   dragonfly
   dragonfly-s3_data_store
   exception_notification!