fixed update bug
5.4.5
Change "Descent Rate to Destination" to "Vertical Speed Required" since
this really isn't a VSI.
Allow VSR to be displayed beyond 30 miles to destination.
Change sign from always + to + or - (- indicates you need to go down).
Merge pull request #56 from rasii/vsrChanges

Changes to Infolines::Vertical Speed Indicator