Bugfix for FS#1318
Merge pull request #150 from tom-r/master

Bugfix for FS#1318
Improve Chart database lookup performance
Show informational dialog when a PlugIn fails to load, and is Blacklisted.
Blacklist s63_pi Version 0.6 and below for Mac OSX.
Correct S57 ENC Object Query font selection
Correct ChartSymbols loading logic for DCMode rendering.
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.