some Windows fixes
note encouraging experimentation
fixed wording about tabs and spaces according to PEP8
removed teaching how to hack a fake argument passing technique
forgot to remove a line
Revert "forgot to remove a line" -- accidentally commited fabfile changes

This reverts commit 9bef24d16111f1860f001878bc857d9fa1a3c7a5.
forgot to remove a line
Merge pull request #37 from SonOfLilit/master

- Windows notes
- indentation advice
- Square solution correction