check whether python is python 2 use python2 if not
Merge remote-tracking branch 'origin/parched/OP-1324_fix_build_when_python_isnt_python2' into next
Revert "Merge remote-tracking branch 'origin/parched/OP-1324_fix_build_when_python_isnt_python2' into next"

This reverts commit 4592de13bda5c825fc2a6065e8e4978330ceaca2, reversing
changes made to a309537e62aa938e483f8b21204f95da91244ed9.
OP-1450 Turn on high resolution support for OSX
Change message about installing 7zip on Linux, packaging changed in latest
LTS
OP-1438 VSI_Arc_PFD+Status : First commit, modified Vsi with arc, added foreground layer with gradient
OP-1438 VSI_Arc_PFD+Status : Added FlightTime, ArmStatus, Stab info
OP-1438 VSI_Arc_PFD+Status : Vertical velocity display looks ugly due to telemetry updates, add some filtering.
OP-1438 VSI_Arc_PFD+Status : Added Thrust mode info close to Flightmode
OP-1438 VSI_Arc_PFD+Status : Added RcInput panel, work in progress
OP-1438 VSI_Arc_PFD+Status : Typo (CruiseCtrl), little cleanup
OP-1438 VSI_Arc_PFD+Status : Bigger Rcinput panel for best viewing
Update default layout config
OP-1438 VSI_Arc_PFD+Status : Display Vsi waypoint with guided flymodes only. Check AirframeType for FW/VTOL pathfollower use.
OP-1438 VSI_Arc_PFD+Status Refactored PFD for best viewing on small devices / laptops. Battery panel added on left
OP-1438 VSI_Arc_PFD+Status Bottom alarms a little bigger
OP-1438 VSI_Arc_PFD+Status : DemiBold font weight on top
OP-1438 VSI_Arc_PFD+Status : Bugfix, MouseArea was active on hidden background panel.
OP-1438_VSI Arc_PFD+Status : Master Caution alarm, white font
OP-1438 VSI_Arc_PFD+Status : Add system / info panel, work in progress. Currently only Smeter on first Oplm.