STATISTIK-772 Refactoring of sjukfall calculation. Removed unused fields.
STATISTIK-772 Refactoring of sjukfall calculation. Changed argument order of "to, from" to the more logical "from, to"
STATISTIK-772 Refactoring of sjukfall calculation. Moved field "active" to method local scope.
STATISTIK-772 Refactoring of sjukfall calculation. Typo.
STATISTIK-772 Refactoring of sjukfall calculation. Made responsibility of process method a bit clearer.
Merge branch 'develop' of https://github.com/sklintyg/statistik into develop