Fix #CR-2034
Fallback to LDB backend if mapistore:namedproperties is missing
Fix #CR-1645

Send MAPI_E_CALL_FAILED in NSPI UpdateStat when SortTypePhoneticDisplayName is used in pStat.

Functional test is added to check the crash.
Fix expected returned value for mapitest zentyal 1872
Merge pull request #46 from sixstone-qq/ejhernandez/fix-1645-nspi-crash

Fix #CR-1645
Merge pull request #81 from openchange/master

Fix #CR-2034