added revokeAll() test
indentation fix
added abstract function revokeAll()
revokeAll() implementation for DbManager
revokeAll() implementation for PhpManager
fixed Sort::params to be retrieved from Request instead of $_GET

for consistency with paginiation
some clarification on model docs
fixed Sort test
fixed array helper test
fixed travis and composer issue
fixes #1306
travis: speed up composer
Merge pull request #1304 from pmoust/revokeAll

implements #563 - revokeAll()
Fixes #1248: url manager didn't handle array parameters well.
Update apps-advanced.md

Should run migration to import yii tbl_user if not the sign up/login may report error.
Merge pull request #1308 from kk86bioinfo/patch-1

Update apps-advanced.md
Fixes #1307: move batchInsert() to base class.
Fixes #1296: stricter check of dashes in route.
Fixes #1298: supporting route with trailing slash.
Fixes #1301: fixed scenario generation when there are "except" scenarios.