Merge branch 'release/v0.1.3' into develop
Added @Password

1. Added @Password which relies on `password_hash`
2. Fixed filter issues at update
Do not rely on composer for autoload
References are json friendly
Added @onHydration events to References
Improved static calls
Merge branch 'develop' of github.com:crodas/ActiveMongo2 into develop
Improved References cached values at update
fixed issue when @Reference cache is not given
Added support for inheritance

It works as PHP does, all the events, validators are called from the parent to the child
Minor change
Made update_property filter also parent friendly
Adding dynamic classes mapping

TODO:

It should generate code with the mapping instead of guessing at runtime
Merge branch 'feature/inheritance' into develop
Improved class resolution
Expose raw collection object
Added @preDelete and @postDelete
fix test for php5.5
fixed autoincrements with collections with parents classes
Fixed autoincrement