Log Message:
Update to 1.30. Add comment to one patch, and remove another patch
for which there is no comment and which I don't understand.

New in 1.30:

* Version 1.30 (released 2015-03-02) [stable]

** libidn: The punycode.{c,h} files were re-imported from RFC 3492bis.
A comment explaining the origin and what was changed was added.

** Bump gettext to 0.19.3.

** Use LT_INIT instead of AC_LIBTOOL_WIN32_DLL.

** i18n: Added Hungarian translation.  Updated some other languages.
Thanks to Balázs Úr.

** API and ABI is backwards compatible with the previous version.