Merge branch 'LUN-1533'
Merge branch 'master' of ssh://github.com/pbs/cmsplugin-feed
Get RSS thumbnails from tags properly
Parse image from summary/content if not in cms tags.
PEP8 fixes and other minor fixes.
prioritize jpeg over other
try except instead of checking everything
refactoring
Merge pull request #12 from pbs/LUN-1831

LUN-1831