Remove App::getEnv() and App::setEnv()
Deprecates Module::loadYamlConfig() (now an alias of loadConfig())
Remove App::isDevMode() (replaced with isEnvironment($env)). "development" and "production" becomes "dev" and "prod" internally
Remove not required "use" statement
Fix BUG in YamlFileLoader that was making it impossible to load relative paths
Move the parameters resolver back to ServiceManagerBuilder so cache paths are available before the "Config" service initialization
Build the App::name property based on the app/ dir