fix current python unit test
provision openchangedb using mysql as backend
minor fixes on provisioning
fix set folder properties for mailboxes
better memory allocation for local variables
fix doble free error when there were no results
create folder must create folders_names entry with the display_name with en_US locale
change debug log message
Merge pull request #13 from Zentyal/jgarcia/provision-with-mysql-backends

Provision uses openchangedb mysql backend