Added more pay slip tests and fixed failing time report tests.
Added getUserUrl().
Added support for negative time.
Disabled time reporting on approved pay slips.
Added incoming and outgoing vacation buffer.
Extracted LoginForm, SearchView and EventListView.
Improved encapsulation and split Im4ix into I4 and I4Database.
Changed pay slip to only include assignments with time reports.
Changed start doc to only show active assignments.