Start approximate LVLH.
Fix LVLH transform. Thanks @rcpage3!
Replace pseudo-private functions with file-scoped functions
Merge remote-tracking branch 'origin/master' into approximateLVLH
Default to east-north-up frame if LVLH fails.
Clean up some allocations.
Replace pseudo-private functions with file-scoped functions
Updates based on review.
Replace pseudo-private functions with file-scoped functions
Update CHANGES
Merge pull request #818 from AnalyticalGraphicsInc/approximateLVLH

Approximate LVLH
Merge pull request #822 from andre-nunes/issue705

Replace pseudo-private functions with file-scoped functions
Merge branch 'master' into widgetCleanup

Conflicts:
	CHANGES.md
Merge branch 'widgetCleanup' into viewer