Level up - the next version

This is it (mostly - but it can probably be moved into master now). The latest and greatest version which supports:

- Testing for multiple files and browsers
- A REST and SocketIO API (thanks to Feathers)
- A new, tested more stable and separate [client side adapter](https://github.com/bitovi/testee-client)
-  Working testing remote URLs

Additional work (fixes, more tests and documentation) will be done in master.