REFACTORING: Renamed database to databae_tables and adapted values to new syntax
REFACTORING: Renamed database to databae_tables and adapted values to new syntax

In the config the section database was renamed to database_tables and
the values are now continouse and average for the continouse graph and
average graph.

AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6