2012-01-03  Abhijit Halder  <abhijit.k.halder@gmail.com>

	Implementation of pipe to pass GDB's command output to a shell
	command for processing.

	* NEWS: Add news item for the new command "pipe".
	* pipe.c: New file.
	* Makefile.in (SFILES): Add pipe.c.
	(COMMON_OBS): Add pipe.o.