Improve HAML in url/form partial

I fixed some long lines in this file. This should improve its
readability.

Change-Id: I74149c57bf6103e2b3093c4dc6044a20e86a6d54
Improve format of script/take-snapshot.js

Just shuffled some whitespace around so it adheres to our coding style.

Change-Id: Ib86075f46b1e7456edc17470e2b5273e9a787311