update Japanese translation

update to 2.9.9.2

update Spanish translation for 2.9.9

update to 2.9.9

update to 2.9.8.3

update 2.9.8.2

fix encoding conversion bug

update to prerelease 2.9.7.2

fix fonts garbled under Mac OS X after change default font:

  rollback default font to Monaco, and set default ASCII-Art font to Andale Mono

fix CentOS packaging