Fixed missing row in unit test grid.
Added missing boost logo for correct appearance of docs
Greatly improved the async_file_io_dispatcher_base destructor to detect stuck async_io_ops, print them off and if after a timeout nothing has changed, to exit anyway. This should fix our failing unit tests once and for all, albeit there is obviously a bug in there somewhere which creates stuck ops.
Improved design rationale.
More design rationale improvements.
Added Mingw-w64 Jenkins target.
Merge branch 'master' into MSVC_build

Conflicts:
	libs/afio/test/test_cpps.txt