Update samba4 version to 4.1.11
Add memory checks on GetReceiveFolder mysql backend function
Initialize MessageClass prior call to openchangedb_get_ReceiveFolder
Fix small memory leak
Merge pull request #48 from openchange/jkerihuel/cr-2069

Add memory checks on GetReceiveFolder mysql backend function
Merge pull request #87 from openchange/master

CR-1621 additional sanity checks