Add links to pandas and sqlalchemy
Add cytoolz as a hard dep
Add pandas as a hard dep
skip spark tests when pyspark is not available
Rename test files for py.test usage
Update travis for py.test usage
Update requirements.txt to require pytest
Use pytest decorators for skipping and failing
Skip on spark unavailable
Use pytest xfail
Remove unused imports
Clean up after ourselves when testing sqlite locally
Should not require pytest for use
Skip spark and remove nose
Remove array printing code
Proper args for running py.test
Merge pull request #409 from cpcloud/req-cytoolz

Correct dependency documentation
xfail python3 gzip bytes test
Merge pull request #1 from mrocklin/fix-testing

xfail python3 gzip bytes test
Update dep docs