- Fix prototype of NtLoadKeyEx.

- Fix prototype of NtLoadKeyEx.
- Refactor CmiLoadHives using new config routines instead of deprecated cm routines.
- Stop using deprecated CmiScanKeyForValue (delete regfile.c as a result).
- Add code for parallel hive loading to speed up boot process, but don't yet fully use it due to changes required in linking hives.
- Add code for new hive linking process (CmpCreateLinkNode/CmpDoOpen). Not yet used to avoid too many changes in one patch.
- Add new code in CmiLoadHives to deal with updated linking process when it becomes used.
- Implement NtLoadKey2 to cal NtLoadKeyEx.
- Implement NtLoadKeyEx as a new config routine, using CmLoadKey, move out of Cm.
- Add some more code in CmpInitializeSystemHive to deal with SYSTEM hive creation during setup, once hive linking is refactored.
- Implement a new command except for flushing -- open: CmpCmdHiveOpen. Used by CmLoadKey.
- Add support for impersonating the SYSTEM account if the hive can't be open in the current client security context.
- Fill out CmpMachineHiveList, to be used in parallel hive loading.

svn path=/trunk/; revision=30680