fix bug in tag_release code and bump version

Author: Shevaun Coker

lib/easy-deployment/version.rb

@@ -1,5 +1,5 @@
 module Easy
   module Deployment
-    VERSION = "0.3.1"
+    VERSION = "0.3.2"
   end
 end

lib/easy/deployment/capistrano.rb

@@ -65,7 +65,7 @@ def current_git_branch
 
   desc "Tag the release by creating or moving a remote branch named after the current environment"
   task :tag_release do
-    unless system("git branch -r | grep 'origin/releases/#{stage}'")
+    if system("git branch -r | grep 'origin/releases/#{stage}'")
       system "git push origin :releases/#{stage}"
     end
     system "git push origin #{branch}:releases/#{stage}"