Remove all trailing whitespace (again)

[jakebolewski]

No description provided.

[ivarne]

It doesn't look like your travis fail is working

It should've failed on the first commit, because it is tested before the commit where you clean everything up.

[jakebolewski]

It looks like quotes are necessary to get this to work on Travis - "! git grep ...", I don't know why this is offhand.

[tkelman]

@ivarne should we also remove trailing whitespace on release-0.3? I don't think that's been done yet and it looks like it might be causing some conflicts.

[ivarne]

Most definitely. If @jakebolewski remember the command he used, that would probably be a big timesaver.

[jakebolewski]

This was the command I used

find . -not \(-prune -o -name .git -prune \) -type f -print0 | xargs -0 sed -i '' -E "s/[[:space:]]*$//"