Rename log.js to console.js
Watch all JS files in the JS directory (not recursive) with Grunt
Remove source map from jquery core
Include RequireJS

Including RequireJS means
- basic configuration
- dependency management for jQuery and console stub
- add Grunt task for Require builds with r.js
- remove uglify task which includes source maps
- remove Grunt taks with fix for source maps

Sadly grunt-contrib-requirejs does not support source maps yet,
since it uses uglify instead of uglify2.

Closes #12.
Add Travis CI integration scripts