Language file update
Correct various potential runtime errors flagged by Xcode analysis.
Allow for iso-8859-1 non-ASCII characters in sources.
Correct Track Split logic  (FS#1410)
Correct non GL mode area rendering for FLOAT converted buffers
Improve chartsymbols loading logic, again.
Correct Vector chart PlugIn rendereing of AREA objects in noGL mode.
3.3.1929
Update translations from Crowdin
Correct chartsymbols loading for non openGL builds.
Improve multithread GL texture cache dialog.
Correct PlugIn API implementation for plugin vector chart context.
Update chart directory change signature on single chart add.
Correct for Mac OSX fault on glDelete texture zero.
Clear sorted chart index before raster cache update.
Avoid applying zero length changes file.
Avoid file rotation and File Not Found message if navobj.xml.1 does not exist.
Correct VBO data size allocation.
Implement timed turnoff for toolbar tooltips in touch/tablet mode.
3.3.1931