Pull two post 3.3.1 fixes from mlterm upstream:

https://bitbucket.org/arakiken/mlterm/commits/ba3a5a22ae82b7c227cfd9f952881a281c53f82a
 * ml_vt100_parser.c: U+200c-200f and U+202a-202e aren't converted
   even if -n option is specified.

https://bitbucket.org/arakiken/mlterm/commits/4ccecc4cbc90ed69054f0e94179bdccb6fda5868
 * x_screen.c: The limitation of the column width and the line height (< 32)
   is removed.

Bump PKGREVISION.
Updated x11/mlterm to 3.3.1nb1
Don't fail on unused functions with Clang.
Fix include order to sort out build with new glib.
Fix compilation failure on SunOS
The nullbytecert.pem is actually part of Python 2.7.6 so trying to patch it
into existence fails on MirBSD. Remove the patch, which is no longer needed.