Complete task: SGF output.

Change the extension of experiment output files
from '.game' to '.sgf'.
ladder reader new branch and package sam sam erik
test for ladder player started
Fixes .gitignore problem that was preventing us from committing .sgf
files. Adds those files.
Looks for Orego in the right place on Fido. Also looks for files with
.sgf extension when collating experiment results.
Fix SGF output format

A single node may have at most one comment
but Orego was putting multiple comments into
the last node. Fix this by splitting up comments
into separate nodes.
Merge pull request #2 from Orego/sgf_format

Fix SGF output format
[fix] git ignore to remove *.data
Merge branch 'master' of github.com:Orego/Orego
made methods in Ladderplayer to find out about liberties of liberties of
chains in atari
[fix] re-adding missing files by first updating existing files
[add] missing .data files
Merge branch 'ladder_branch2' of github.com:Orego/Orego
[merge] with master