adding pertinent info to create party
Fix positioning of paw sprites
fix(tests): set a proper environment for tests
fix(travis): disable selenium tests on Travis
Remove year from charts to avoid label collisions
fix space issues: contrib modal, challenge list
fix(rewards): hide special event spells section if empty, fixes #2909
refactor(groups): more `res.json(500)` => `next(err)` conversions, for
unified error-handling in express middleware
Move styles from stable.jade to inventory.styl file
fix(groups): don't show 404 for solo users (not trying to fetch party in
the first place), fixes #2919
fix(challenges): when unlinking tasks, sometimes the challenge no longer exists
fix(groups): err:400 when already in a party, not 500
Delete -ms-filter value as it is automatically added when compiled
Remove obsolete comment
feat(premium): mystery items
fix(static): move About => Features
chore(mobile): add mobileChat flag for grandfathering
fix(readme): build status for the develop branch

Your main development branch is `develop`.
It is usually only interesting to follow the status of the branch in development.
Of course `master` branch will almost always be passing.
Ironically, now it isn't, because our build fixes are on `develop`,
so it's another reason to switch.
chore(readme): add links to 3rd party projects
chore(readme): switch to a simpler checkout command