Update gemspec

Also remove unused hook files.

Change-Id: I2ef7083f768aa7bb9815b1167ed35241d6c80b52
Reviewed-on: http://gerrit.causes.com/35591
Reviewed-by: Shane da Silva <shane@causes.com>
Tested-by: Shane da Silva <shane@causes.com>

Author: sds

bin/hooks/commit-msg

@@ -1,29 +1,27 @@
-$: << File.expand_path('../lib', __FILE__)
+$LOAD_PATH << File.expand_path('../lib', __FILE__)
 require 'overcommit/version'
 
 Gem::Specification.new do |s|
-  s.name              = 'overcommit'
-  s.version           = Overcommit::VERSION
-  s.license           = 'MIT'
+  s.name                  = 'overcommit'
+  s.version               = Overcommit::VERSION
+  s.license               = 'MIT'
+  s.summary               = 'Git hook manager'
+  s.description           = 'Utility to install, configure, and extend Git hooks'
+  s.authors               = ['Causes Engineering']
+  s.email                 = 'eng@causes.com'
+  s.homepage              = 'http://github.com/causes/overcommit'
 
-  s.summary     = 'Opinionated Git hook manager'
-  s.description = 'Overcommit is a utility to install and extend Git hooks'
+  s.require_paths         = %w[lib]
 
-  s.authors  = ['Causes Engineering']
-  s.email    = 'eng@causes.com'
-  s.homepage = 'http://github.com/causes/overcommit'
+  s.executables           = ['overcommit']
 
-  s.require_paths = %w[lib]
-
-  s.executables = ['overcommit']
-
-  s.files = Dir['lib/**/*.rb'] +
-            Dir['bin/**/*'] +
-            Dir['config/*.yml']
+  s.files                 = Dir['bin/**/*'] +
+                            Dir['config/*.yml'] +
+                            Dir['lib/**/*.rb']
 
   s.required_ruby_version = '>= 1.8.7'
 
-  s.add_dependency 'wopen3'
+  s.add_dependency             'wopen3'
 
   s.add_development_dependency 'rspec', '2.14.1'
   s.add_development_dependency 'image_optim', '0.10.2'