[FIX] disabled determineId because it is not catched when it fails and doesn't seem to be required anywhere
ADD: TSFE initialization methods to AjaxDispatcher
FIX: add t3lib_pageSelect to property sys_page of FakeFrontend
ADD: UserAgent utility
ADD: utility class for user agent information
FIX: remove obsolete require_once calls
TASK: Upload version 1.5.10