Validation, possibility to assign custom validation to form #2575
Libmemcached, methods was defined more than one time fix
Redis, missing variable definition
Image, mask fix
Unit-tests from 1.3.3, update phpunit.xml testsuite to passed tests
Crypt, decrypt compile error fix
Di service, false value for shared, resolved attribute [ci skip]
Config, php adapter [ci skip]
Between validator fix, enable validation test [ci skip]
Image GD adapter fix, enable image test [ci skip]
Views, exists fix [ci skip]
Views, render improvements [ci skip]
Views improvements, enable ViewTest, ViewEnginesTest [ci skip]
View simple fix, enable ViewSimpleTest [ci skip]
Dispatcher, afterInitialize event [ci skip]
Merge pull request #2607 from mruz/2.0.0_fixes

2.0.0 improvements