Merge pull request #4 from madcowfred/develop

Develop
Move over to supporting celery 3.1.x out of the box. Update some of the README.rst to the newer practices
Give sample pip install command for celery[redis]
Add displaying of partial trained skills to the skillplan view.
Logic care of @Kyria fixes #45
Merge pull request #52 from Gillingham/develop

Update to celery 3.1.x and Show partially trained skills in the skillplan