Added another utility method(with unit test) for the low-bandwidth notification type
Merge branch 'onionoo-wrapper' of https://github.com/lucyd/tor-weather into backend
Added code for LowBandwidth event detection and notification. Yet to implement the remaining part of the hourly script(NodeDown notification)
Fixed minor internal documentation error
Implemented the NodeDown notifier based on the older weather's criteria(Refer to design document for more details)
Integrated the t-shirt script(#9889) functionality with the welcome script in a new 'daily script'; Also added the DataError exception and  check to the onionoo-wrapper
This is for testing weather with vagrant post the changes made to backend(hourly, daily scripts)
Merge branch 'backend' of https://github.com/lucyd/tor-weather into develop
Testing in vagrant; Fixed some issues with the hourly and daily scripts
Merge remote-tracking branch 'lucyd/backend' into develop