added output of model performance file
corrected error introduced by skintemperature formulation; now using LONGIN array for all cases also if assumed spatially invariable; also added output of model performance file
error fixed in input.txt of example, did not have number for discharge
removed on if methodlongin - forgot to delete earlier
minor format change
added all files to push up to github
cleaned up input.txt and corrected one error: discharge value was missing
Merge branch 'vestfonna'

changes up to 17 October implemented, somme errors found therefore pushed to master
Changed format of model performance file.

These changes should improve readability for both humans and machines.
bumped version number