Log Message:
Import slrn-pre1.0.0-11 as wip/slrn-devel.

This is latest development snapshot, heavily based on already existed
news/slrn. 

Changes since 0.9.9p1
1. src/charset.c: Avoid using CODESET if it is not defined.
2. doc/slrn.1: Remove blank line at top of file. (Ignatios Souvatzis)
3. src/Makefile.in: /bin/sh on solaris does not like empty lists in a
   for loop causing make install to fail.  Workaround added
   (Petr Sumbera).
4. src/mime.c: rewrote much of the email address encoding/decoding so
   that only comment fields in email addresses are encoded/decoded.
   slrn is also smarted in encoding/decoding other headers (based on
   patch from Robert Grimm).
5. autoconf/Makefile.in: Added dependencies such that if the
   Makefile.in and config.in files have been modified, the user is
   told to re-run the configure script.
6. Updated the copyright years to 2009.
7. src/mime.c: Omit the mime headers if the content is pure 7bit.
   Also, if mime-headers already exist, do not add append additional
   ones.
8. configure: Added the configuration option --with-non-gnu-iconv that
   can be used to indicate that local version of iconv is not
   compatible with GNU iconv (Piotr 'aniou' Meyer).
9. src/charset.c: Upon failure, slrn_test_convert_lines will return the line
   that caused it to fail.
10. src/charset.c: If the --debug option is given, slrn will write the
    strings that iconv failed to convert to the log file.
11. src/post.c: Skip long line checks between verbatim marks. (Robert
    Grimm).