Removing all relationship-related code.
Remove @Table and @Database: KISS
Remove whitelist/blacklist option to embrace KISS
openOrCreateDatabase only in MODE_PRIVATE - other flags are deprecated because of security implications afaik
Moved IstanceNotFoundException in .exceptions package
organized responsibilities between DatabaseManager, RoboManager, RoboModel
Conflicts:
	src/com/nonninz/robomodel/DatabaseManager.java
	src/com/nonninz/robomodel/RoboManager.java
	src/com/nonninz/robomodel/RoboModel.java
	tests/src/com/nonninz/robomodel/DatabaseManagerTestCase.java
	tests/src/com/nonninz/robomodel/ModelTestCase.java
Removed useless RoboGuice dependencies
Using Jackson instead of GSON. Hello, speed! Unfortunately, a code cleanup also was triggered making this commit a bit messy :(