tests improved, verify added
beforeSubmit function after global validation all fields forms
updated apidoc composer.json

require a version that contains phpDocumentor/Reflection#16
Added ability to get incoming headers
added basic greek translation
added Greek (el) as available language
Merge branch 'master' of git://github.com/yiisoft/yii2 into get-headers
removed unnecessary greek translations from core
fixed paths in apidoc script according to psr-4 autoload and composer/bin
Minor fixes in active-record.md
Merge pull request #2112 from crtlib/patch-4

Minor fixes in active-record.md
added notes about default limit set by elasticsearch

fixes #1864
fixed weird `#` in greek translation
Fixed typo
Merge pull request #2110 from pmoust/greek

Greek core translation
Merge branch 'tests_improved_verify' of github.com:Ragazzo/yii2 into Ragazzo-tests_improved_verify

Conflicts:
	apps/basic/tests/README.md
	apps/basic/tests/unit/models/LoginFormTest.php
Merge branch 'master' of git://github.com/yiisoft/yii2
more path fixes for apidoc command
Fixes #1782
Merge branch 'master' of git://github.com/yiisoft/yii2