Ensure that update name and type are always treated as strings
Ensure that update name and type are always treated as strings

Since this data can come from the data-name and data-type attributes it
can behave differently from the data that comes from input fields. The
former can cause numbers to be treated as integers instead of strings,
whereas the latter are always (correctly) treated as strings.

Resolves: #13

operasoftware/dns-ui,operasoftware/dns-ui