Minor typo in the StatefulInterface comments
Fix process params to only accept StateMachine

It must accept all class that implement StateMachineInterface
Update Transition Process Param

It must only care to StateMachineInterface, not only to StateMachine, as the TransitionInterface I update to.
Fix phpdoc of ArrayLoader
Cast state to string in StateMachine#getState
BC for PHP 5.3
Pass StateMachine to guard
Update ArrayLoader.php
Merge pull request #74 from ksn135/patch-1

Patch for Symfony 2.6
Merge pull request #53 from tompedals/patch-1

Minor typo in the StatefulInterface comments
Merge pull request #56 from memtoko/polymorphic-fix

Make Transition Only Care to StateMachineInterface
Merge pull request #71 from Padam87/fix_state_string

Cast state to string in StateMachine#getState
Merge pull request #73 from Padam87/guard_fix

Pass StateMachine to guard
Merge pull request #64 from nidup/fix/phpdoc-arrayloader

Minor fix, phpdoc params for ArrayLoader __construct
Event Params - Initial commit
Event Params - Docfix
Event Params - Built in OptionsResolver