1. Sorry for the size, but this PR was all-in or nothing
2. The mechanics for namespace is that user selects it via the dropdown
   and the selection goes through all pages, but has effect on display
   only on list pages.
3. The selector is now ugly. I'll style and improve wording later.

Applies to: #719

Plus stub for details page.

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

Added links for documentation, and renamed Replica Set to Replication Controller, revised tooltip texts

When there is no warning events and you change filter to Warning in ReplicaSet Detail page,
 "No events were found" message is displayed and filter form is not shown.

TODO that is left: format CPU usage. Now raw number is displayed.

* 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

* Add more details: name & namespace, service name
* Refresh the view on replicas change
* Overall design refresh of the left menu

This is to be able to run when the application is rooted not at the
domain name. E.g.,
http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/kubernetes-dashboard/#/replicasets

Also, make some changes to the api to allow for omiting specification of container.

Previously podst that weren't in the phase of success were displayed incorrecty in lots of places.

* make fonts larger (md-body instead of md-caption)
* use only color and sizes from variables.scss
* use less different colors
* simplify CSS rules

Please check out this change and compare to previous version.