BF: Small fix to make travis go.
RF: Remove dipy dependency by integrating the NIPY onetime module.
RF: get coverage.
BF: Two different things:

1. Seems that MakeFastPrediction was replaced with MakeFastGaussPrediction.
2. Reduce sensitivity of testing utils, for other platforms (Travis).
RF + TST : Add a coveragerc, so that only popeye is tested.

Reduce sensitivity even more.
TST : make sure that doctesting example works.
TST : experimenting with coveragerc
TST: experimenting with coveragerc some more.
TST: Maybe this will restrict test coverage for us?
Just kicking the golem into life.
Merge pull request #13 from arokem/fix-travis

BF: Small fix to make travis go.
DOC: small changes to the documentation
RF: spruced up the generic optimization functions
TST: fixed the lower-bound of the sigma based on the pixels per degree
TST: added tests for the generic optimization functions
TST: still having weird trouble with the STRF tests.  I can run the thests as in `nosetest popeye/tests/test_strf.py` but I cannot run from the top directory as in `nosetests`