A new branch - a comparison of "causality detectors"

Move code around. Add pre-generated data for comparison
of CCM against STE. Start work on a notebook for illustrating
comparison
Remove unwanted .pyc
Rename causality module
Add setup script to install causality module if desired
Code for generating large amount of data on cluster
Remove unwanted (old) data files
Update gitignore with some things we know we don't want
Ignore ipython temp files
No longer need to import csv files
New local-only branch including data files
Bidirectional data
Some improvements to causality detector

Include mutual information and symbolic TE code in
causality module.
(Fake merge all-data branch - don't import any data)
Merge commit '7491' into causality-detectors
Merge commit 'bf0c' into causality-detectors
Merge development branches, better example file.

The CCM example notebook is now a bit cleaner