MDL-17754, MDL-11061, MDL-9276, MDL-17777, MDL-17787 - various url handling improvemetns; rewritten $FULLME and added $ME, $SCRIPT and $FULLSCRIPT; improved slashargument handling especially for IIS; removed legacy slasharguments functions obsoleted since 1.6; some other refactoring; reverse procy support, ssl appliance support