Removed old dependencies

illuminate/database and gedmo/doctrine-extensions
Changed Gedmo to Knp Timestampable
Changed the way of handling form submissions
Added Locale fixtures
Fixed Locale controller
Fixed company controller
Fixed client group controller
DataFixtures for client group, company, locale
UnitController with data fixtures
Moved datagrid query logic to repository
Changed company repository
Added ability to set container for repository

Needed for fast request parameters access
Removed getAlias from repositories

AbstractRepository evaluates alias from class name
Fixed unit repository
Fixed client group repository
Removed not needed interface definitions
Fixed travis
Changed htaccess
Removed parameters.yml
Added codeception/notifier