Update UserController.php

Add support for using a callback as redirect route instead of only strings
Update zfcuser.global.php.dist

Added documentation refering to the usage of callback as the login_redirect_route.

Usage example:
'login_redirect_route' => function(\ZfcUser\Entity\UserInterface $user) {
    // Any desired code or logic
    return 'my-custom-process-route';
}
Search 'redirect' param in POST data too
Added tests for tests noted missing or not finished
Added few more tests.
Added dependency on zend-session.
Almost fully tested Adapter\Db.
Newline at end of file
Added tests for AbstractAdapter and a little more work on Db tests
Added dependencies
Removed session suggestion as it's now a dependency
Storage db test
Uncomment logout test
Added tests for UserHydrator
Added a few tests for User Mapper
Added placeholders for all tests.
Fix CS
Fix tests namespaces
Update for travis
Fix CS errors
Fix CS errorr in ChangePassword form
Travis fix test