fixed bracketing and initialized recess module to make RECESS work

fixed indentatoion

updated package.json with grunt execution

updated travis config to install grunt-cli

changed RECESS to LESSLINT and specified less files to lint

updated paths according to actual locations

excluded font-awesome form css linting since it produces a lot of warnings

excluded webxray.css since it is not mantained by mozilla

fixed bower

forgot comma

xtra bracket

changed path of font-awesome

excluded hint.css from linting since it is not maintained by Mozilla