Move guard+dependencies to development group only.

Author: Malte Rohde

Gemfile

@@ -2,13 +2,16 @@ source 'http://rubygems.org'
 
 gemspec
 
-group :development, :test do
+group :development do
   gem 'pry'
   gem 'guard'
   gem 'guard-rspec'
   gem 'guard-bundler'
   gem 'rb-fsevent'
   gem 'growl'
+end
+
+group :development, :test do
   gem 'json'
   gem 'rspec'
   gem 'rack-test', '~> 0.6.2', require: 'rack/test'