Remove unecessary $form_state['controller'] hack
Remove usage of FormState as an array.
Merge branch 'master' of https://github.com/md-systems/flag-drupal8 into md-systems-master

Conflicts:
	src/Form/FlagFormBase.php
Merge branch 'md-systems-master'
Merge branch 'form_state' of https://github.com/timplunkett/flag-drupal8 into timplunkett-form_state

Conflicts:
	src/Form/FlagFormBase.php
Merge branch 'timplunkett-form_state'
Initial broken Flagging field entry link type.
Fixed incorrect handlers annotation.
Updated routing.
Merge branch 'flaggingFieldEntryForm' of https://github.com/socketwench/flag-drupal8 into flaggingFieldEntryForm