More on short echo tags [skip ci]
More on short echo tags [skip ci]
Merge pull request #1054 from lucianobaraglia/master

GII - more short echo syntax
Fixes #1056: removed 5.3 compatibiltiy code from ArrayHelper::multisort, fixed phpdoc
Removed check for PHP 5.4 from Session::open()
Removed fallback from mb_parse_str to parse_str from Request::getRestParams since mb_ availability is Yii2 requirement