Checking avilability for git modified so it should work on Travis

Signed off by Renan Fichberg <rfichberg@gmail.com>
Travis don't like this. I gave on coming up with a technical explanation to
this and just stop to waste time and fixed it.


2014-08-14 18:30 GMT-03:00 Diego de Araújo Martinez Camarinha <
notifications@github.com>:

> In app/models/downloaders/git_downloader.rb:
>
> > @@ -2,11 +2,11 @@ module Downloaders
> >    # Downloader sufix was put because otherwise it would conflict with the Git class from the git gem
> >    class GitDownloader < Base
> >      def self.available?
> > -      begin
> > -        Git.init
>
> What was the problem here?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/mezuro/kalibro_processor/pull/23/files#r16267827>.
>