Moved DSN string in db_config, as a composite of other atrributes.
Implementations from defuze.
Turned orm directory into a package.
Added orm in main.py. Some syntax fixes to make things work. Not yet ok.
Removed Base inheritance in TableTemplate.

All mappings now inherit from two classes: TableTemplate and Base.
Fixed some function calls. Pretty much running.
Added MySQL-python to requirements.txt.