upgraded Bootstrap to version 2.2.2
Added responsive CSS files to Plugin as well as updated the Helper's load and css function and Install script to include the ability to load responsive css by simply added parameters to the load function call
changed image $this->app_img to point to webroot/css/img because that's where the copied out version of bootstrap.css was trying to look for the icons.  I chose to do this method rather than modifying the core bootstrap.css file
had a bug in my last commit in the new app_img_folder path.. this fixes that bug
Merge branch 'feature/UpgradeBootstrap' into feature/Responsive
change responsive parameter to be an options array
Merge pull request #8 from clmsnskr/feature/Responsive

Added Option to load responsive.css