document more core modules with jsdoc comments

git-svn-id: http://svn.apache.org/repos/asf/rave/trunk@1504268 13f79535-47bb-0310-9956-ffa450edef68
RAVE-987: Add bootstrap to rave_js tag. Applying patch from Dan Gornstein.

git-svn-id: http://svn.apache.org/repos/asf/rave/trunk@1504271 13f79535-47bb-0310-9956-ffa450edef68