Some pieces of code were updated to use Filter objects, while other
places are still to be updated. We also need to change the history part
to exclude actions somehow, cleanup the ViewEdit, reduce direct DB
access or anything mentioning DB fields outside of FilterLookup, etc.
Change-Id: I42b7ded685db76eddd45e4b1336f9828cba811ce
This is a thin wrapper around LBFactory and the global variable, that
can be injected in classes requiring it (no real class right now, but
that's going to change soon).
Also, remove some DWIM-style returns which made the code harder to
understand.
Change-Id: I1d28ad4a67f914103f3a17cda5f61b28070c7f1c
