Added more on write ordering.
Merge branch 'master' of github.com:BoostGSoC/boost.afio
Fixed up broken images in generated documentation.

Fixed build matrix summary.

Solved Boost QuickBook text centering and colouring problem.
Well that was surprisingly difficult ... I've patched in a new exception_ptr * late bound parameter to completion handlers. First (and the hardest) step to fixing barrier done!
Ok, this compiles and is no worse than before :). Next stop is reboot into Linux and start debugging there with that test code I wrote a few nights back.