Remove dotenv-deployment, upgrade dotenv-rails

Idk exactly what's going on with dotenv-deployment, if it turns out it was critical to our deploy process then we'll change the deploy process! It's deprecated and conflicts with gem deps for `dotenv-rails`.

Gemfile

@@ -8,8 +8,7 @@ gem 'mysql2', '>= 0.3.11'
 
 # For reading the .env file, which you can use in development to more easily
 # set environment variables for secret data.
-gem 'dotenv-rails'
-gem 'dotenv-deployment'
+gem 'dotenv-rails', '~> 2.8', '>= 2.8.1'
 
 # For the asset pipeline: templates, CSS, JS, etc.
 gem 'haml', '~> 6.1', '>= 6.1.1'

Gemfile.lock

@@ -81,10 +81,10 @@ GEM
       thread_safe (~> 0.1)
       warden (~> 1.2.3)
     diff-lcs (1.2.5)
-    dotenv (2.0.1)
-    dotenv-deployment (0.0.2)
-    dotenv-rails (2.0.1)
-      dotenv (= 2.0.1)
+    dotenv (2.8.1)
+    dotenv-rails (2.8.1)
+      dotenv (= 2.8.1)
+      railties (>= 3.2)
     erubis (2.7.0)
     execjs (2.5.2)
     factory_girl (2.6.4)
@@ -219,8 +219,7 @@ DEPENDENCIES
   capistrano (~> 2.15.5)
   compass-rails (~> 3.1)
   devise (~> 3.5.10)
-  dotenv-deployment
-  dotenv-rails
+  dotenv-rails (~> 2.8, >= 2.8.1)
   factory_girl_rails (~> 1.0)
   globalize (~> 4.0.3)
   haml (~> 6.1, >= 6.1.1)

config/deploy.rb

@@ -1,5 +1,4 @@
 require "bundler/capistrano"
-require "dotenv/deployment/capistrano"
 require "rvm/capistrano"
 
 set :application, "newimpress.openneo.net"