Log Message:
Update mlterm to 3.4.0.

pkgsrc changes:
- add options for cairo and fribidi and enable them and xft2 by default
  per upstream default changes
- also make gdk_pixbuf2 support optional (enabled by default)
- regen a patch to adjust offset
- take over maintainership to reflect reality

Changes noted in doc/en/ReleaseNote:

ver 3.4.0
* Support DEC Locator mode (which is necessary for Xsixel
  (http://github.com/saitoha/xserver-SIXEL)).
* Support CSI > 2 p (for SDL-sixel and Xsixel) which always hides mouse pointer
  even if it moves. (Not compatible with xterm though.)
* Add --point/use_point_size option.
* Support software keyboard on rotated display.
* Support HLS in sixel sequence.
* Change the default mouse pointer on a mlterm window from IDC_ARROW to IDC_IBEAM
  on win32.
* Embed sixel processing to mlterm which is built without --with-imagelib option
  instead of using 'mlimgloader' to improve performance.
* './configure;make install' (without 'make') is available.
* Build with fribidi, xft and cairo by default.
* Change the default value of "type_engine" option from \ 
"xcore" to "xft".
  (If you want to use xcore, add "type_engine = xcore" to ~/.mlterm/main.)
* Bug fixes:
  Fix corrupt scrolling within left-right margin which contains full-width \ 
characters.
  Fix a bug which disabled to show inline pictures if logsize=unlimited.
  Fix a bug which calls select(2) with an invalid file descriptor after \ 
restarting ibus.
  Fix a libvte bug which disabled color configurations on roxterm or sakura.