Log Message:
(textproc/aha) Updated 0.5 to 0.5.1

Version 0.5.1 (recent):
- Use doctype HTML5 instead of XHTML optionally (thanks to Dan Nagle)
- Rewrote man page using mdoc (thanks to Stephen Gregoratto)
- Removed extra linebreak at end (thanks to Ryan Hendrickson)
- Use the #hex format for colours (thanks to suve)
- Added optional language attribute
- Added vbcc support (thanks to polluks)
- Fixed handling of SGR 39/49 (thanks to Patric Mueller)
- Added css inline option
- Added --style option for inlining css styles like font size (thanks to Ted Lyngmo)