Merge pull request #10 from jasonmyers/master

Fixed missing import and unreachable NotImplementedError
Merge pull request #11 from jasonmyers/master

Fixing SendTable.baseclass using an invalid filter reference
Renamed example in ./bin to prevent import conflicts
Modify example to no longer require a demo file be in the skadi git directory
Merge pull request #13 from bluepeppers/example_fix

bin/skadi path issues
bin/example -> bin/skadi, for links on site
Added Index.find_between for more efficient peek search than using sets
Fixed an iter(filter)
code consistency
Python's object does not have __getattr__ only __getattribute__
Merge pull request #15 from bluepeppers/dt_prop_fix

Python's object does not have __getattr__ only __getattribute__