Trim trailing white space throughout the project

Created originally on Bitbucket by jdufresne (Jon Dufresne)

Changesets for this Pull Request have not been imported, because it had been already declined on Bitbucket. Marked as closed by the import user.

Many editors clean up trailing white space on save. By removing it all in one go, it helps keep future diffs cleaner by avoiding spurious white space changes on unrelated lines.