moved FileDBSequence _init_subclass and strslice code to SequenceFileDB as suggested by Titus
moved FileDBSequence _init_subclass and strslice code to SequenceFileDB as suggested by Titus

ctb/pygr,GenDataPro/pygr,RitwikGupta/pygr,theoryno3/pygr,GenDataPro/pygr,theoryno3/pygr,GenDataPro/pygr,RitwikGupta/pygr,theoryno3/pygr,cjlee112/pygr,RitwikGupta/pygr,ctb/pygr,cjlee112/pygr,ctb/pygr,ctb/pygr,cjlee112/pygr,cjlee112/pygr,ctb/pygr