Long container names no longer break the page

In the containers page, if the name of a container is too long, the
objects table is no longer visible and the table is out of the screen.
There's a screenshot in the bug itself.

Change-Id: I4b37d04fec462b2b2baad5a3c76db0d0f48e5387
Closes-Bug: 1314145
Hide "Download EC2 Credentials" if EC2 is missing

If EC2 is not a registered service, don't show the "Download EC2 Credentials"
button in the "API Access" tab.

Fixes bug 1331153

Change-Id: I4e600b49573d2d3d96e93c984346d23f02e45e28
Merge "Hide "Download EC2 Credentials" if EC2 is missing"
Merge "Long container names no longer break the page"