Disable logging of asset pipeline messages

I do not find the asset pipeline messages very helpful, hence I have
disabled them.

Signed-off-by: Konrad Reiche <konrad.reiche@gmail.com>
Change metrics dashboard design

I am changing the design of the metrics dashboard. Instead of selecting
a repository and applying a metric I want to select between different
repositories which then leads to displaying all the available metrics
and their results.

Signed-off-by: Konrad Reiche <konrad.reiche@gmail.com>