Revamping build_forwards.py a bit.
Revamping build_forwards.py a bit.

Making comments docstrings for functions.

Adding usage string.

Only building forwards if required (a header file is newer than the forwards header).

Not building seqan_generated_forwards.h any more since it is never included.

git-svn-id: a7f2a8f7432d210e972fb03898013d213e2b549b@5251 e6417c60-b987-48fd-844e-b20f0fcc1017

gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan