search: FacetOption constructor takes into consideration default options

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
FacetOptionsList: proper query response handling

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
FacetOptionList: returns the class

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

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
FacetFilter: takes defaults into consideration

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
FE: unused variable removal
tests: FOL cont
FacetOption: default option template
FacetOptionList: visible selector modified
karma: browser changed in conf
tests: FacetOption list tests cont
FacetFilter: deleted double triggered connectEvents
FacetFilter: lazy mode status loading separation for easier testing
helpers: test to check if an object is initialized
FacetFilter: default template
helpers: test to check if an object is initialized