daemon: Also find cgroups in the cpuacct hierarchy.

This makes cpu monitoring work with default docker 0.9.0.

Closes #452

Reviewed-by: Stef Walter <stefw@redhat.com>
web: Unbreak linting of undefined variables and functions.

Js-lint used to grep for "^function ..." and "^var ..." in all files
and register them as global definitions.  This meant that for example
resource_debug from cockpit-docker.js would be allowed to be used
everywhere even though it is a local function.

This is fixed by only registering functions and variables starting
with "cockpit_" and never using that prefix for local definitions.

Closes #462

Reviewed-by: Stef Walter <stefw@redhat.com>
web: Remove more jQuery Mobile left-overs.
web: Add "de" translations.

Also, reformat some HTML so that the strings look better in the po
files.

Translations are not yet complete, and the translation mechanism has
regressed a lot when moving to Patternfly, so this is just a small
initial step.