Hotfix duplicate analysis.
Merge pull request #202 from senkz/develop

Construction 2 results
Merge develop with master
Documentation Dialog PDF fix
Fixed nullpointer exception
Merge pull request #221 from thijsghu/master

Construction 3 merge 1, added hotfixes + requirements for the last construction phase
Merge branch 'develop'
Merge branch 'master' of https://github.com/HUSACCT/HUSACCT into develop