v2.1.0-beta.2

The second beta for 2.1.0 fixes some bugs and adds some new features and fixes some bugs.
New features:
Add an offset mode to the control keypad (#152)
Add Snapshots of per-address priority (#133)
More languages - Now has French, German, Spanish (#136)
E1.31:2016 Universe Discovery

Bugfixes:
#161
#160
#155
#151
#134