Add tests and documentation for gff2bed.py
Merge softmask.py into fasta2fasta.py and add test. Remove softmask.py
Remove fasta2gff.py
Add tests and documentation to gff2bed.py
Merge branch 'master' of ssh://github.com/CGATOxford/cgat

Conflicts:
	scripts/fasta2gff.py
 updated documentation and added new tests for scripts/fasta2fasta.py and scripts/gff2bed.py
Merge branch 'master' of ssh://github.com/CGATOxford/cgat