Better added trivial-bio-sequence as new superclass.
Better added trivial-bio-sequence as new superclass.

git-svn-id: 6df64b8f39cfd9dbdcbae04bfc672930f6320f25@87 3e778353-6f3f-0410-9ba2-8ef0519b21f3

lvaruzza/clcb,lvaruzza/clcb