Merge pull request #182 from jaahaavi/master

Spektrum UART selection fix
Redo sbus scaling/offset calculation based on data from FrSky X4R and d91ba93b8400ea118cd6fca1012c0ed2da14e3b7.
Removed sbus_offset as it's not needed with this. Closes #48
Fix for softserial code.
Merge pull request #191 from CurtisFissel/master

Fix for softserial code.
Update mw.h

Addition of Model: ATail4 basically tail is mounted inverted to VTail4
Addition of Model: ATail4 basically tail is mounted inverted to VTail4
Addition of Model: ATail4 basically tail is mounted inverted to VTail4

Addition of Model: ATail4 basically tail is mounted inverted to VTail4
  Addition of Model: ATail4 basically tail is mounted inverted to VTail4
Addition of Model: ATail4 basically tail is mounted inverted to VTail4
Addition of Model: ATail4 basically tail is mounted inverted to VTail4
Merge pull request #192 from norem/master

Addition of Model: ATail4 basically tail is mounted inverted to VTail4
Merge pull request #2 from multiwii/master

Update from original