add platform-quota.[ch] to the projects file

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14113 f4695dd4-2c0a-0410-b89c-da849a56a58e
in peer-msgs.c's tr_peerMsgsCalculateActive(), adjust some of those new tracer assertions to work better with magnet links.

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14114 f4695dd4-2c0a-0410-b89c-da849a56a58e
use G_DEFINE_QUARK instead of rolling our own quark getters

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14115 f4695dd4-2c0a-0410-b89c-da849a56a58e