Better name for repository (?)

I recently updated chosen-rails with the koenpunt fork. I love the `update-chosen` task, very convenient. I had two mis-steps due to the `remote` argument.

1. I thought it meant a git remote, so I used `git remote add`, no go.
1. After looking at the Rakefile, I realized it wanted a repository. I used the GitHub Clone URL button (home page of each repo). That didn't work either.

After looking at the Rakefile again, I realized that it wanted the URL without the .git at the end. Then things worked. Great.

I don't feel strongly about this change – or the specific argument name `repository_url`. Use it if you think it would help.
use correct compass-rails gem for rails 4.0
Merge pull request #40 from slothbear/patch-1

Better name for repository (?)
update to commit ece04c45aa of Chosen
bump gem version to 1.0.1
updating compass-rails dependency to v1.1.2 w/ rails4 support

compass-rails v2.0.alpha.0 has been yanked from rubygems.org in favor of
v1.1.2 which has been released w/ rails 4 support.

updating version dependency in gemspec and corresponding documentation

see:

* https://github.com/Compass/compass-rails/pull/113
* https://github.com/Compass/compass-rails/issues/116
Merge pull request #43 from jordanstephens/compass-rails-update

updating compass-rails dependency to v1.1.2 w/ rails4 support
update to commit a9cb635c6c of Chosen
gem version to 1.0.2
Merge remote-tracking branch 'upstream/master'