PEP 8 fixes and spelling changes

Hi there, thanks for pytddmon. Here's a few changes that I made to clean it up a bit. No functionality changes, just simple patches.

* Removed a bunch of white spaces
* Added triple double quotes where they are supposed to be
* Fixed some minor spelling mistakes
* Changed `file` to `found_file` to avoid using python reserved keywords.
* Removed redundant () from return statements
* Removed spaces around function arguments `func(foo=bar)` instead of `func(foo = bar)`