[RTL]

[RTL]
- Implement and export RtlGetCriticalSectionRecursionCount (introduced in NT 5.2 SP1, see http://www.geoffchappell.com/studies/windows/win32/ntdll/history/names52.htm) which definition comes from http://processhacker.sourceforge.net/doc/ntrtl_8h.html#a26bd65dfad63985a247700c2c2ab9e86.
- Fix the return type of RtlSetCriticalSectionSpinCount.
- Export the already-existing RtlQueryInformationActiveActivationContext API.

RtlQueryInformationActiveActivationContext and RtlGetCriticalSectionRecursionCount are needed by Win2k3 user32.dll and winsrv.dll .

svn path=/trunk/; revision=60302