hhsuite v3.0-beta.3

bugfixes:

• a3m.py
• hhmakemodel.py fixed by Hongbo Zhu
• userguide (fixed with user reports)
• renumberpdb.pl

feature:

• databases used by hhsuite do no longer require a cs219 ffindex database; and they require only an a3m or an hhm ffindex database not both