Move away from Angular (without any tears)

This commit is a complete rework of the codebase:
* Remove AngularJS as framework
* Remove Grunt as task runner
* Introduce SystemJS as new module loader
* Introduce Gulp as new task runner
* Move old prototypes into  the 'spiking' folder
Merge pull request #1 from learningmedia/UniversalModules

Move away from Angular (without any tears)