For the full log of gretl changes since January 2000, see
<@url="http://gretl.sourceforge.net/ChangeLog.html">.

2018-09-03, version 2018c
- Fix bug: the panel-statistic functions pmean() and psd()
  give wrong results when only the first observation of a
  cross-sectional unit differs from the others
- "foreign" support for R: try to handle non-ASCII filenames
  in the gretl.loadmat function
- Prevent crash on failure to access a single dbnomics series
- Correct index shown in an "out-of-bounds" error message
- Correct alignment in printing "note" for bundle member
- Support indexing into a list-member series (e.g. "L[i][t]")
- Read Ctrl-G as "Find again" in find dialog box, and make
  search wrap silently
- Matrix "division": handle the reduced-rank case properly
