Updated NEWS.txt and _version.py to 0.5.2

Merge remote-tracking branch 'origin/dev'

Merge remote-tracking branch 'origin/dev'

bumping version to 0.4.4 and updating NEWS.txt

Bumping version to 0.4.3 and updating NEWS.txt

adding a test for ufora#188, which was already fixed

Bump version to 0.4.1

release date 2/17/2016

updating NEWS.txt for 0.3.4

Really make scipy optional...