If you plan to submit patches, here's a checklist:

 Commits:

- make commits of logical units;
- do not modify piece of code not related to your commit;
- do not try to fix style of code you are not writing,
  it's just adding noise for no gain;
- check for unnecessary whitespace with "git diff --check" before commiting;
- do not check in commented out code or unneeded files;
- provide a meaningful commit message;
- the first line of the commit message should be a short;
  description and should skip the full stop;