[elpa] branch externals/chess updated (7ec3269 -> 515805a)

[Mario Lang]

mlang pushed a change to branch externals/chess
in repository elpa.

      from  7ec3269   doc/chess.texi: Document AI, Crafty and GNU Chess engine 
modules.
       new  515805a   doc/chess.texi: Briefly document chess-eco.el and 
chess-polyglot.el.

The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 chess.info     |  205 +++++++++++++++++++++++++++++++++++++++-----------------
 doc/chess.texi |   65 +++++++++++++++++-
 2 files changed, 208 insertions(+), 62 deletions(-)