Robot Web Tools JavaScript projects removed from ROS build system

Old JavaScript projects from the Robot Web Tools project are now deprecated for new standardized libraries like [roslibjs](https://github.com/robotwebtools/roslibjs). The old repositories will be removed and, as such, they have been removed from the ROS build files.

Robot Web Tools will now be validated and tested using [Travis CI](https://travis-ci.org/RobotWebTools/roslibjs) and distributed in a manner more appropriate for JavaScript project using the Robot Web Tools CDN service (http:cdn.robotwebtools.org). E.g., http://cdn.robotwebtools.org/roslibjs/current/roslib.min.js

@baalexander