Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
[FLTMGR} - Implement FltAcquirePushLockExclusive, FltAcquirePushLockShared and FltReleasePushLock. Lifted from ntos' internal pushlock routines. - Implement FltpObjectPointerReference and partially implement FltpObjectPointerDerference svn path=/trunk/; revision=74588
[FLTMGR] - Set correct major and minor versions - Update the cmakelist file - Export FltRegisterFilter and FltUnregisterFilter - Minor cleanup svn path=/trunk/; revision=72596
[FLTMGR] Fix GCC build svn path=/trunk/; revision=71871
[FLTMGR]: Remove a MSVC warning: FltObjectDereference, whose prototype is publicly defined in fltkernel.h, doesn't return any value. svn path=/trunk/; revision=71864
[FLTMGR] Move it to a more correct place in the tree svn path=/trunk/; revision=71860