Make tox take advantage of the Travis build matrix when running on Travis CI
Build docs as part of the tests
Merge pull request #18 from singingwolfboy/travis-tox

Make tox take advantage of the Travis build matrix
Use extended interpolation for parsing config file

See https://docs.python.org/3/library/configparser.html#interpolation-of-values
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Merge pull request #21 from singingwolfboy/fix-spelling

leaved to left
Use backported version of configparser in Py2
Merge pull request #20 from singingwolfboy/configparser-advanced-interpolate

Use extended interpolation for parsing config file
Add an S3 log handler