Fix flickering and improve antialiasing.
Fixed PFD telemetry arrow loading.
math: implement bound_sym() in terms of bound_min_max()
Merge pull request #478 from solidgoldbomb/simpler-bound-sym

math: implement bound_sym() in terms of bound_min_max()
Merge remote-tracking branch 'taulabs/next' into sc/vrbrain
Merge pull request #459 from kubark42/pfd-qml-fixes

Pfd qml fixes
Merge remote-tracking branch 'taulabs/next' into sc/vrbrain
add vrbrain to build package