[BugFix] Fixed an issue with domains with only a language and no hostname attached to it

When adding a language to a node without a hostname, an entry is written
in the umbracoDomains table with domainname '*' + nodeid. Those
shouldn't be displayed in the domain dropdown.
[BugFix] Deleting a selected node to replace it with a url

When first selecting a node to redirect to & afterwards trying to
replace it with a redirect url, the selected node keeps getting saved.