Merge pull request #1 from jonasstein/master

Reimporting
Class definition, cleanup, improved table creation.
Merge remote-tracking branch 'upstream/master'
Cleaning, unittest mockups, basic DB operations.
AddressBook class created. Initial work on othe rclasses. New table for properties.
Split classes. More unit test mockups.
Merge pull request #5 from ivergara/master

Reorganization and more unit testing mockups
mention vobject
python version -> 2.x
fixed typo
Unit tests to separate files. An exception for FabDatabase. Some cleanup