Gruntfile updated to add SASS support and remove LESS support. Package.json adds grunt-contrib-sass
Build Config updated to remove LESS and add SASS as well as the scss version of bootstrap
Remove main.less and update with main.scss.  Change the main.scss file to address other .scss files and introspect the .scss files from the different app modules (in this case, it's home.scss and about.scss, but those will change)
removed home.less. Added about.scss, home.scss, _variables.scss
Added sourcemapping option. Uncomment when debugging since it increases build time by a factor of 2-3.