Update version number for next development cycle: 1.1.8-zdev
Setting IsFileReadonly back to false is not allowed - not in elevated mode, not on the server, not in a server context
Change relation type: if the type is moving up, allow changing the relation
Fixing rewireing of 1:n & 1:1 relations
Removing last StaticFileReference
Merge remote-tracking branch 'origin/develop'