Flush stdout to simplify for tools that buffer too heavily.

Tiny patch from Hugh Daschbach <hugh@ccss.com>.
Mark internal variable "g_utf8_skip" as static.

Reported by Thomas Dineen <tdineen@ix.netcom.com>.
Bump versions.
Update gnulib files.
Use libiconv 1.14.
Don't build csharp code when building Windows binaries.
Update gnulib files.
Update copyright years.
Update PGP key.
More copyright year updates.
Sync with TP.
Ignore more.
Version 1.29.
Bootstrap 1.29