commit image resources into repo
added new class files to repo
GPS no longer requested when application backgrounded
more work on gridfloat reading
lots of changes
lots of changes
added missing files
UI work
grabs geotiff NODATA value
lots of UI fixes
support geotiffs with non-square cells, UI fixes
help files updated, settings 'done' button added
changed how GPS being disabled is handled, cleaned up some code, changed 'Follow Elevation' text to 'Follow My Elevation'
added html file for help screen
some code cleanup
UI fixes and such
fixes
removed unused files
removed bin and obj folders
Removed nonsense that doesn't belong in git.