Special Case
Note for memory
Helpful direction angles.
Merge pull request #17 from MOARdV/master

Added scaled altitude strip to JSIHUD.
Renumbering global buttons too.
Better error handling
Tweak.
Beginnings of a ;-splitter...
More thoughts.
That fixes vessel description loss on revert to launchpad.
Tweak.
Oh, and to prevent damage to the description record...
Engine overheating should only check engines.
Oneshot option.
DUH!
Add pseudo-log10 values for vertical speed and the assorted altitude values.

These will make useful HUD strips easier to implement.
Re-do the altitude strip into a generic "vertical bar" indicator, and add a second one.

This allows an altimeter and vertical speed indicator to be implemented, although any other trackable variable could be done as well.