update XSLT
Adding an advisory maximum header block size.  Closes #551.
Change log for previous.
Content-Length and DATA and HEAD.  Closes #564
Closes #563
Closes #535
Tweaking 1xx text
MAX_HEADER_BLOCK_SIZE -> MAX_HEADER_SET_SIZE
Restoring 100, adding change log note
Change log editorial corrections
Adding mandatory cipher suites.  For #498.
Updating MTI to only apply to TLS 1.2