Started new design.

Finished station component including tests.
Events component including tests.
Station tests now also based on a fixture.
Cleanup.
InventoryDB component with tests.
100% test coverage for the component tests
Better station component design and proper doc.
Event components doctests and doc.
Proper documentation inventory DB.

Also fixed some small bugs/inconsistencies.
Beginning of waveforms component.
Feature complete iterations component.
get_stations_for_event() for query component.
Started to replace the old monolithic project class.
Lazy initialization of database objects.

They are just not needed for many task.
init_project working with new architecture.
config parsing and __str__ for new style project class.
Working list_events command.
Models component.
Removing interactivity from the matplotlib plots.

This was always messy and the web interface is a clearly superior
solutions to this particular problem.
Hooked up most plotting functions to the new architecture.