Updated Unit-Tests

[weblogixx]

Just updated the unit tests to use the new shallow rendering for react. The update involves many changes on different files and includes:

• Updated packages for Babel (now uses 5.x instead of 4.x), Karma and webpack.
• Removed the default karma-browser launchers and only included PhantomJS. After the update of grunt-karma the syntax of karma.conf.js has changed slightly, so if using them, you have to require them as plugins
• Added minor performance improvements for unit tests (that one was easy, the karma config for webpack had not exclude for node_modules, adding this alone speeded the tests up roughly 4 seconds on my machine)
• Updated unit tests to use new ES2015 syntax (because why not :)).

Note! The changes on unit tests are incompatible with the older release! That means that old projects that you add tests to will use the new defaults, but are NOT able to handle them. Therefore, old projects would need to be migrated manually.

Please have a look at the changes and tell me what you think about it.

[newtriks]

Thanks @weblogixx