Added Lib to Makefile.

Not sure if I'll add the lib directory to the repository or not yet
since it's just the tar of the qdecoder source. Hm.
Added heartbeat and load_qdecoder.h
Added poll script.
Added ignore and .gitkeep to lib folder, added readme as well
Updated Makefile with test-poll command.
Added tests in Makefile for chat.c
Added chat script