Remove unused #include statements

git-svn-id: svn://svn.code.sf.net/p/fuego/code/trunk@1956 2e953b5c-c64d-0410-be54-f773e93e544c
Fix typo in documentation

git-svn-id: svn://svn.code.sf.net/p/fuego/code/trunk@1957 2e953b5c-c64d-0410-be54-f773e93e544c
Add proven status of UCT node to comment in sgf file

git-svn-id: svn://svn.code.sf.net/p/fuego/code/trunk@1958 2e953b5c-c64d-0410-be54-f773e93e544c