Minor fixes
Removes configuration property tmpRoot and updates modulesFolder path
Simplifies configuration by removing references to tmpRoot and tmpFiles
Turns login.css into login.less
Includes node module: grunt-contrib-less to compile LESS
Removes unused task grunt-recess

Grunt-recess removed in favor of grunt-contrib-less
Creates copy:dev task and makes symlinks:dev task more accurate

Since modules will have their LESS pre-compiled, the copy:dev task was
created to move all other module files to the dev folder (where the
compiled CSS is) thus avoiding any missing references.

Also, replaces all taks references to 'recess' with 'less'.