Laravel 5.2 and up

This new release introduces a few new changes:

• Laravel 5.2 compatibility
• Two new methods, getNextModel() and getPreviousModel() allow you to walk the list of versions for a given model (thanks Andrew!)
• better model_id determination to avoid potential race conditions (thanks Andrew!)

Initial tested release

Removed internal dependencies on Facades
Added first set of passing tests

0.0.6

renamed a misnamed file