- udpate to 3.7.11:
* Re-add support for transliteration with iconv (removed in 3.7).
* Add support for ignoring invalid input with iconv.
* Fix a bug introduced in 3.7.10 that prevented building the code.

- udpate to 3.7.10:
* In recode program, only use iconv if needed; add --prefer-iconv option to
allow its use in all cases.
* Remove support for pre-3.5 request syntax (colon as charset separator).
* PO files have been updated from the Translation Project.
* Build system fixes and improvements.
* Update gnulib to fix a problem building on Android.
* Fix confusingly wrong NEWS entry for 3.7.4.

- Update to 3.7.9
+ Fix CP1252 encoding: U+017E LATIN SMALL LETTER Z WITH CARON is
at byte 0x9e, not byte 0x8f.
+ Minor documentation fixes.