(trunk) #5671 'dht-0.22': update third-party/dht.c to Juliusz Chroboczek's upstream v0.22

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14268 f4695dd4-2c0a-0410-b89c-da849a56a58e
sync third-party/miniupnp/updateminiupnpcstrings.sh to Transmission's automake code

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14269 f4695dd4-2c0a-0410-b89c-da849a56a58e
remove extraneous 'include event.h' that confused the mac build.

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14270 f4695dd4-2c0a-0410-b89c-da849a56a58e