Add script to generate new entry

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Add velvet optimiser

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Add velvet assembler

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Add ABySS assembler

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Add SOAP denovo

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>