Configurator: fixed error when $_COOKIE['nette-debug'] contained array
Merge pull request #11 from JanTvrdik/fix_cookie_array

Configurator: fixed error when $_COOKIE['nette-debug'] contained array
added Configurator::COOKIE_SECRET
Configurator::detectDebugMode() accepts boolean
Configurator::setDebugMode(TRUE) is forbidden on production
Configurator::setDebugMode() accepts special value 'FORCE'