Initialise app and move mailaddress stuff form TIC-Desk

mentioned in merge request Teckids/ticdesk!55

created merge request !7 (merged) to address this issue

mentioned in merge request !7 (merged)

mentioned in commit 97d0dd84

mentioned in commit 4c8ee157

mentioned in commit 33e64541

mentioned in commit 4a781823

mentioned in commit 397da077

mentioned in commit cd9a2258

mentioned in commit 81e18551

mentioned in commit c1e2c1d5

closed with merge request !7 (merged)

mentioned in commit 2f6ba440