Applies to: #719

With this we'll be able to do generic stuff, e.g., deletion or YAML
edition.

Plus stub for details page.

This is long, but mostly boiler plate. Please sync and check how it
works.

* made the gap between header and cards 16px
* 8px or 16px padding on right and left sides of page (it feels wrong
  for cards to abut the edge)
* show tooltip for images only when needed
* link-out links open in new window
* logs menu has smaller font
* Use sentence capitalization for property labels, e.g. “Internal
  endpoint” vs “Internal Endpoint”
* change labels to `key: value`
* rewrite of delete replica set dialog to make it stylable

- See issue: https://github.com/kubernetes/dashboard/issues/76

This PR implements column layout for the replica set list view. The
layout is implemented through a directive that puts its transcluded
elements into a column layout.

There's some algorithmic code in this PR, so please comment if something
is not tested or easy to understand.

Please also verify on your machines that this works correctly.

* this is a refactoring change - no functional changes
* added missing tests
* added missing module dependency (tests found it)
* this is a prerequisite PR for future work on the card