Move status to nav bar, small CSS fix for navbar

* NavCtrl->MainCtrl, that's what it is
* introduce context in MainCtrl: now status and host are accessible to child scopes.
* moved status text to nav bar
* css for nav bar to match the content width

Signed-off-by: debuger <debuger@softwarefrontier.com>
Move status to nav bar, small CSS fix for navbar

* NavCtrl->MainCtrl, that's what it is
* introduce context in MainCtrl: now status and host are accessible to child scopes.
* moved status text to nav bar
* css for nav bar to match the content width

Signed-off-by: debuger <debuger@softwarefrontier.com>
Merge branch 'dev/dz' of https://github.com/dzimine/collectd3 into dev/dz
Wire ndv3 charts, fix resolution.

* Time series displayed with nvd3 charts (problem: the x axis labels and ticks are totally off)
* Add resolution to graphs, to get reasonably sized data sets for charts
* Bring back mocks, to run without backend and see the data format.

Signed-off-by: debuger <debuger@softwarefrontier.com>