fixed 'loaded first' bug in shot detection

If two tanks would shoot each other in the turn, the tank that was first
would always win the shootout. This patch changes it so they both die.
added chart of kills
copy awk scripts on install
Fixed bug in makefile. Would not compile because using LDFLAGS instead
of LDLIBS. LDFLAGS for things like library directories, LDLIBS for
libraries.
fix escaping in awk scripts
add current.html with just the canvas
Major changes to structure. Moved file I/O out of forftanks.c into
tankdir.c and tankjson.c. If no files are supplied to forftanks, it
now waits for a JSON stream on stdin. Also changed make file to
include required libraries (and compile in the right order). Install
has been changed.
Merge branch 'master' of http://github.com/LukeAngove/tanks into json
Forked on github.