10 * remove map recreation
11 * remove unnecessary object construction
16 * fix browserify require
17 * remove node.extend dependency
23 * add option "thousandsSeparator"
24 * return "null" on invalid parse input
25 * support proper round-trip: bytes(bytes(num)) === num
26 * units no longer case sensitive when parsing
31 * add negative support. fixes #6
36 * added terabyte support
46 * bytes(200).should.eql('200b')
51 * add bytes to string conversion [yields]