abduco 0.2

Updated abduco formula to the 0.2 release. Removed patch that 0.1 required to compile. Had to do a little inreplacing to work around OSX selectively removing SIGWINCH/VLNEXT in signal.h/termios.h when -D_POSIX_C_SOURCE is defined.
Submitted and, similar to dvtm, the author is not interested in implementing these changes. Is there a better way to accomplish this than inreplace?