Fix : Exception name for ProtocolError.

Thanks ricard33!
Fix : reset self.nb_check_received before the main loop in scheduler.py

The stats were incorrect in debug when restarting the arbiter.
Multisite version update

Update MKVER variable to Multisite lastest stable version (MKVER="1.2.2p2")
Merge pull request #909 from Denetariko/patch-5

Multisite version update
Created splitted files
Rename nagios-windows.cfg to shinken-windows.cfg and adding shinken-specific dir into
Rename nagios-windows.cfg to shinken-windows.cfg and adding shinken-specific dir into
Added splitted shinken specific file for load balancing configuration
Reorganize shinken configuration files
Merge branch '912-split_conf' into sydel
Change NMAPMAXRETRIES to 3. Better detection