base: karma added to bower conf

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
global: demo of tests with karma and jasmine

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
tests: facets tests

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>