Change copyright holder to Edwin Dalmaijer
Remove *.pyc
Move `lib*` modules to `tracker` package
Avoid `exec()` statements in importing tracker modules
Merge pull request #1 from smathot/master

That's great, thanks!

On you suggestions:
1) A base class might be a good idea. Would be a good starting point for all new libraries too.
2) I'll have a look at the class specific properties. Your keyword dict sounds like a solid approach.