Formatting fixes

[Saturn]

Only contains some formatting changes.

• Use spaces instead of tabs across py files.
• Replace instances of two spaces for indentation with four spaces.
• Trailing whitespace removed.
• Two line breaks between end of function and next function.
• Remove space between decorator and function.

I think this cleans things up quite a lot. Especially the point about the code having deeper indentation than necessary. architv/soccer-cli#27

Some of the files used spaces for indentation and others tabs. Better for every file to use four spaces for indentation.

[suhussai]

Wow looks good, nice work!

[architv]

@Saturn Great work!