ENH: Added travis CI config file.
TST: Do not call psample() if multiprocessing is not available. Removed call to psample in logistic example.
Added Cython and scikits.spars to travis install.
BUG: Tests step methods used obsolete names.
BLD: Added suitesparse.
BLD: Added swig.
BUG: Imported matplotlib for stochastic volatility model.
TST: Do not run parallel test if multiprocessing is not available.
Merged and resolved conflicts.
Merge conflicts.
Commented out figsize.
Merge pull request #197 from twiecki/pymc3

Add travis continuous integration support + bugfixes