fixes #88 with multiple bots conflicting webcam images.
taking a bot online/offline will fix busted jobs and dashboard only includes active bots now.
Merge branch 'master' of github.com:Hoektronics/BotQueue
tweaks to app approval code. fixes #89
you can now select no camera.  fixes #86
add a few things to fix camera loops if errors happen. fixes #85
Merge branch 'master' of github.com:Hoektronics/BotQueue
added try/catch around scan stuff.  fixes #90.
changed driver config reloading.  fixes #87
datetime formatting fixes for unknown dates. fixes #83
Merge branch 'master' of github.com:Hoektronics/BotQueue
will automatically re-auth when token becomes invalid. fixes #84.
Merge branch 'master' of github.com:Hoektronics/BotQueue
added try/catch block around printer stopping.  fixes #71
Merge branch 'master' into 0.5-dev