Added new version of seqFormat. Major change is new method of handling lists, and additional functionality in duplicate filtering. Current limitations to be addressed in the future: need function that detects file format automatically to enable stdin, and currently the duplicate filtering cannot accept multiple records with exactly the same id, later ill need to create an sqlite db from scratch so that i can create the dictionary keys myself because something weird is happening with the key_function option in SeqIO.Index. Also, i havent written anything to write stuff to this version