RIOT-OS/RIOT — pull request #1041 by LudwigOrtmann (2014-04-22 13:45:19+00:00)
Title: Fix doxygen comments for hwtimer.h, queue.h and io.h

Some things stroke me as strange and I added "@todo" comments to them. I'd propose to add tickets in their regard unless someone says here and now that everything is in order with the respective bits.