fix(cockpit/page reload): This commit improve several is supposed to fix the scope lost and page reload encounter when a link in the tabs is clicked.

It also improves (a bit) the javascript build tools and processes:

- use the [newer](http://npmjs.org/package/grunt-newer) to speed up the copying of watched files
- prevent the tests to be automatically runned when a file is changed
- allow livereload feature to be runned on a different port
- prevent the livereload snippet in require-conf.js to be parsed as a jsDoc comment block
- refactor the bootstraping modules of cockpit, admin and tasklist by moving some functions in the require-conf.js
Merge branch 'master' of github.com:camunda/camunda-bpm-platform