all:
- Moved output over to use verb function where appropriate

parcel.cpp:
- Changed verb to be able to output to a log file (still not tested)
- Closing file descriptors on the way out, causing many threads to properly exit
- Changed usage of pthread_join in some places to cause different waits

udpipe_client/server.cpp
- Closing UDT sockets on exit

udpipe_threads.cpp
- Closing another UDT socket on exit
- Added more checks within threads on when to exit