Removing 'magic' from Gemfile.

I can't see where are we using it and it was also
not allowing the bot to start up.

Author: Carlos León

Gemfile

@@ -5,7 +5,7 @@ gem 'cinch-identify', :git => 'https://github.com/cinchrb/cinch-identify.git', :
 gem 'chronic'
 gem 'ago'
 
-gem 'mongoid', '2.1.5' 
+gem 'mongoid', '2.1.5'
 gem 'mongoid_ext', :git => "git://github.com/dcu/mongoid_ext.git"
 
 gem 'rack'
@@ -25,4 +25,3 @@ gem 'loofah', :git => 'http://github.com/phaza/loofah.git', :branch => "rails3"
 gem 'feedzirra', '0.0.24'
 
 gem 'bson_ext'
-gem 'magic'

Gemfile.lock

@@ -51,7 +51,6 @@ GEM
       loofah (>= 0.3.1)
       nokogiri (> 0.0.0)
       sax-machine (>= 0.0.12)
-    ffi (1.0.9)
     git (1.2.5)
     googl (0.5.0)
       httparty (>= 0.6.1)
@@ -68,13 +67,11 @@ GEM
       git (>= 1.2.5)
       rake
     json (1.5.3)
-    magic (0.2.6)
-      ffi (>= 0.6.3)
     mechanize (2.0.1)
-      net-http-digest_auth (>= 1.1.1, ~> 1.1)
+      net-http-digest_auth (~> 1.1, >= 1.1.1)
       net-http-persistent (~> 1.8)
       nokogiri (~> 1.4)
-      webrobots (>= 0.0.9, ~> 0.0)
+      webrobots (~> 0.0, >= 0.0.9)
     mongo (1.3.1)
       bson (>= 1.3.1)
     mongoid (2.1.5)
@@ -113,7 +110,6 @@ DEPENDENCIES
   imdb
   jeweler
   loofah!
-  magic
   mechanize
   mongoid (= 2.1.5)
   mongoid_ext!