Replace require_relative with compatible version

Gemfile.lock

@@ -107,7 +107,6 @@ GEM
       net-sftp (>= 2.0.0)
       net-ssh (>= 2.0.14)
       net-ssh-gateway (>= 1.0.0)
-    columnize (0.3.1)
     crack (0.1.8)
     daemons (1.1.0)
     database_cleaner (0.5.2)
@@ -127,7 +126,6 @@ GEM
     highline (1.6.1)
     i18n (0.4.1)
     json (1.4.6)
-    linecache (0.43)
     lsof (0.3.0)
     mail (2.2.6.1)
       activesupport (>= 2.3.6)
@@ -190,11 +188,6 @@ GEM
     rspec-rails (2.0.0.beta.17)
       rspec (>= 2.0.0.beta.14)
       webrat (>= 0.7.0)
-    ruby-debug (0.10.3)
-      columnize (>= 0.1)
-      ruby-debug-base (~> 0.10.3.0)
-    ruby-debug-base (0.10.3)
-      linecache (>= 0.3)
     saucelabs-adapter (0.8.12)
       lsof (>= 0.3.0)
       net-ssh (>= 2.0.12)
@@ -253,7 +246,6 @@ DEPENDENCIES
   roxml!
   rspec (>= 2.0.0.beta.17)
   rspec-rails (= 2.0.0.beta.17)
-  ruby-debug
   saucelabs-adapter (= 0.8.12)
   selenium-rc
   sprinkle!

app/models/profile.rb

@@ -5,7 +5,7 @@
 
 class Profile
   include MongoMapper::EmbeddedDocument
-  require_relative '../../lib/diaspora/webhooks'
+  require File.expand_path('../../../lib/diaspora/webhooks', __FILE__)
   include Diaspora::Webhooks
   include ROXML
 

app/models/user.rb

@@ -3,9 +3,9 @@
 #   the COPYRIGHT file.
 
 
-require_relative '../../lib/diaspora/user/friending.rb'
-require_relative '../../lib/diaspora/user/querying.rb'
-require_relative '../../lib/salmon/salmon'
+require File.expand_path('../../../lib/diaspora/user/friending', __FILE__)
+require File.expand_path('../../../lib/diaspora/user/querying', __FILE__)
+require File.expand_path('../../../lib/salmon/salmon', __FILE__)
 
 class User
   include MongoMapper::Document

config/application.rb

@@ -13,7 +13,7 @@ require "active_resource/railtie"
 # you've limited to :test, :development, or :production.
 Bundler.require(:default, Rails.env) if defined?(Bundler)
 
-require_relative '../lib/mongo_mapper/bson_id'
+require File.expand_path('../../lib/mongo_mapper/bson_id', __FILE__)
 module Diaspora
   class Application < Rails::Application
     # Settings in config/environments/* take precedence over those specified here.

config/environment.rb

@@ -5,7 +5,7 @@
 
 
 # Load the rails application
-require_relative 'application'
+require File.expand_path('../application', __FILE__)
 Haml::Template.options[:format] = :html5
 # Initialize the rails application
 Diaspora::Application.initialize!

config/environments/development.rb

@@ -3,7 +3,7 @@
 #   the COPYRIGHT file.
 
 
-require_relative '../../lib/mongo_mapper/clear_dev_memory'
+require File.expand_path('../../../lib/mongo_mapper/clear_dev_memory', __FILE__)
 Diaspora::Application.configure do
   # Settings specified here will take precedence over those in config/environment.rb
 

config/initializers/socket.rb

@@ -5,7 +5,7 @@
 
 require 'em-websocket'
 require 'eventmachine'
-require_relative "../../lib/diaspora/websocket"
+require File.expand_path("../../../lib/diaspora/websocket", __FILE__)
   EM.next_tick {
     Diaspora::WebSocket.initialize_channels