- add readme and tag

Merge pull request #19 from Insolita/17-18-enh

enh #17 #18

set model scenario before checkAccess in UpdateAction

add afterSave callback that called after save model with all relations

Support scenario for delete action

Merge branch 'add-relationship-ids-validation'

Add CountForIdentityAction

Add new actions

Add custom validate callbak for check ids for relationships* actions

Merge pull request #12 from Insolita/add_action_events

Add action events