ignore vi .swp files
Change license to CC BY-NC-SA 4.0

@gregcaporaso, the sole contributor to this project up to this point, gave permission [here](https://github.com/biocore/scikit-bio-cookbook/issues/3#issuecomment-56220139).

Fixes #3.
Add runipynbs.py from An-Introduction-To-Applied-Bioinformatics
Add travis-ci config, based on scikit-bio's .travis.yml
Fix import errors so nbs work with latest skbio release
Update readme based on automated testing additions
print -> print() for py3 compatibility
Merge pull request #9 from jairideout/issue-8

Add travis-ci testing of notebooks; change license to CC BY-NC-SA 4.0