Added 'force' option to command_commit

[santiagoIT]

trafficstars

I am using grunt-git to deploy to heroku. Therefore I need to add files to a temp. branch which are ignored (compiled css, etc..). For this to succeed the add --force flag is required.

I took a quick look at the tests but could not figure out how to add a test for this new functionality.

[rubenv]

I took a quick look at the tests but could not figure out how to add a test for this new functionality.

The tests are quite trivial: you specify the grunt options and the expected commands that'll be executed.

[santiagoIT]

Thanks, I added a test now.