Added gvim -f for git commit/rebase messages

.gitconfig

@@ -80,8 +80,8 @@
   # Make `git rebase` safer on OS X
   # More info: <http://www.git-tower.com/blog/make-git-rebase-safe-on-osx/>
   trustctime = false
-	editor = vim
 	autocrlf = input
+	editor = gvim -f
 
 [color]
   # Use colors in Git commands that are capable of colored output when