Revert previous commits

Revert "[bug 819167] Remove email updates and rss links from question page."
This reverts commit 807607f5ce5a5f0b12a722d6a86f209deddd56cf.

Revert "[bug 819167] More removal missing in last commit."
This reverts commit 74c4669af2b8a0ab45a5e329670a50988650fc58.
[bug 851487] Make question tools collapsable