Seperate licence file is no longer needed for cubic.

The licence information for cubic is now included in the source code,
having a sepearte licence file is not needed.

ChangeLog:

	* src/cubic/LICENCE: Removed.
	* src/cubic/Makefile.am (EXTRA_DIST): Removed.
	* src/cubic/Makefile.in: Regenerate.
Add GPL headers to trio benchmark.

Should be fine to add a GPL header to the trio code, so long as the
existing copyright and disclaimer is kept in place.

ChangeLog:

	* src/trio/trio.c: Add GPL header.
	* src/trio/trio.h: Add GPL header.
	* src/trio/triodef.h: Add GPL header.
	* src/trio/triop.h: Add GPL header.
	* src/trio/triostr.c: Add GPL header.
	* src/trio/triostr.h: Add GPL header.
Add GPL and original licence header to fasta benchmark.

The original licence details for the fasta benchmark had not been
committed along with the source.  I've added the original licence
details back into the source file, and added a GPL header as I believe
this is acceptable.

ChangeLog:

	* src/fasta/fasta.c: Add GPL header, and original licence and
	copyright information.
Add GPL and original licence header to nbody benchmark.

The original licence details for the nbody benchmark had not been
committed along with the source.  I've added the original licence
details back into the source file, and added a GPL header as I believe
this is acceptable.

ChangeLog:

	* src/nbody/nbody.c: Add GPL header, and original licence and
	copyright information.