support for batch insert in sqlite older than 3.7.11

tests for this are on elasticsearch branch (due to huge refactoring
there) and will come later by merge

Update apps-advanced.md

Should run migration to import yii tbl_user if not the sign up/login may report error.

implements #563 - revokeAll()

for consistency with paginiation

Added link to new RBAC page

Basic documentation about RBAC

[WIP] Redis ActiveRecord