enet 1.3.12 release prep
upgrade doxygen configuration file
Merge pull request #33 from stephanecharette/master

upgrade doxygen configuration file
doxygen output cleanups
doxygen output cleanups
add doxygen layout
more doxygen cleanups
bold some links
small doc fixes
include mmsystem.h for timeGetTime
add premake file
limit number of packets that can be received per iteration of protocol loop
added note about calling enet_host_service on both ends of a connection
Merge remote branch 'upstream/master'