Parses GFF files extracting the annotation according to GFF(2).
http://www.sanger.ac.uk/Software/formats/GFF/GFF_Spec.shtml
tabtabtabtabtabtab
tabtab[space delimited key=value; key=value; attributes]
Uses some hashes to count the sources, features, and attributes
Generates an array of GffFeature objects, see to learn about what's
used to parse the Attributes.
This parser needs to be tested on each new GFF file, the GFF format is so
flexible as to cause all kinds of problems.
Works with flybase, and the drosophila release 3.1 gff annotation.
Constructor Summary
GffParser(java.io.File file,
int startNt,
int stopNt)