#519 - increment version number
#540 - Organization Page: Last modified option should sort in reverse
fixes #540 - Organization Page: Last modified option should sort in reverse
#451 - Throw error when requested page is not in the allowed list
#451 - fix not used additional imports in test
#451 - about page controller test
Merge pull request #562 from OCHA-DAP/arti-sprint-18

Arti sprint 18