closes #191 makes mutex non-copyable
closes #192 Fix DefaultPerformanceTrackingCallback for wide strings
release notes for 9.75
turned source to dev version
close #194 fix VS2013 build
Donation link updated
raspberry pi support in list
Fixes a lot of warnings - reference to temp
Fixes to build
Fixes performance tracking data handler
attempt to fix clang++ for performance
v9.75 release