bump to 3.3.1 (#552)

bump version to 3.3.0

pin ciso8601 to v2.1.3

bump version

bump to 3.2.1

bump to 3.2.0

Merge pull request #491 from NYUCCL/release-3.1.0

bump v3.1.0

Merge pull request #480 from NYUCCL/fix-bad-config-section-name-refer…

…ence

fixed another bad config section name reference

fix travis yml

try fix travis deploy python2 branch