Log Message:
Update gcin to 1.1.6 & use x11/gtk2/modules.mk to deal with gtk2 im module.

1.1.6:
- XIM en_US.UTF-8 support.
- Fix the problem gcin can't be used with gdmxnest.
- If you set disable XIM when compile, gcin -v will not display version.
- The largest font size is 32 in gcin-setup.

See
http://ccbsd9.csie.nctu.edu.tw/~cp76/gcin/download/Changelog
for more detail.