first pab commit
Merge master into new-contacts-api
Property classes and mysql-schema
Update contacts schema
PdoAbstract class
MySQL pab driver implementation (part 2)
Start to implement pdo updater
MySQL pab driver implementation (part 3)
MySQL pab driver implementation (part 4)
Clear autocreated contacts on create/update contact
The final commit personal address books branches before merging
Merge new-contacts-api

New interface
Contact storage move to plugin
Merge origin/master