Changes to iq_policy documentation and addition of optimistic q learning
Small updates to q learning docs
Major updates to documentation and code structure for PGT Intelligence

Also, minor changes to other areas of documentation. Stackelberg. New
Utilities module.
Improved exception handling in node.get_valueindex() and cleaned up hideandseek.py
Updating examples in bin
Update README.md
Update README.txt
Update README.txt
.DS_Store banished!
.DS_Store banished again!
ignoring gitignore
updated docs and gitignore
adding back documentation
removed pyc files
Update README.md
Update README.txt
Changes to readme and several distribution files
release 0.1.1
fixed bugs in example scripts in bin
New docs built