TIFF-FX: technical changes since RFC 2301

"TIFF-FX" subject line is so you can delete the message if
you don't care about the file format.

-tiff-fx-11 has technical changes since RFC 2301:

(1) Addition of image/tiff-fx MIME type
(2) FillOrder=1 mandatory for all readers except profile S
(3) elimination of ColorMap for profile L
(4) changes to profile M (from Annex C)
   Compression=1 for LayerBaseColorIFDs, adding StripByteCounts
(5) addition of GlobalParamtersIFD, FaxProfile, CodingMethods
   as options to profile F (in the table in section 4.7).

Changes that are not 'removal of a feature' aren't
allowed when moving from Proposed to Draft. (That's
why my complaint about 'wrong document' was irrelevant.)