extract_fasta added poly-N masking
region now can't be of zero length. Specs for intersection included. Region#inspect returns annotation
more tests for Region. Some methods made private (and some are marked as candidates to be removed)
Region comparison
region comparison on minus-strand fixed
cosmetic spec changes
region list
comparison and hash equality for region lists. Intersection of RegionList to Region. Many spaces removed
fix missing coding region. Remove peaks in introns
TODO moved. Some questions about starts in introns  added