Merge pull request #1 from cbeighley/master

Use 'piksi' data format as default
Fix setup.py to include sub-packages in install. Closes #2
Load some extra samples before tracking.
Stops correlator falling off the end and segfaulting.
Add command line argument for file format.
Updating docs and new IPython interface
Integrating feedback from Fergus on the first round of changes. Some other minor tweaks to visual layout.
Develop mode type
Merge pull request #3 from soulcmdc/master

Updating docs and new IPython interface
Additional dependencies for fully building the documentation.
Checking for the version of IPython so the correct sphinx extension can be
used
Changing referenced function from fine_carrier to interpolate. fine_carrier no longer exits.
Adding the corrected command line
Fixing a spelling error
Merge pull request #4 from soulcmdc/master

IPython & dvipng/latex fixes