keys for reserved formats in other languages

[alanb2718]

There are three reserved formats: HY, TC, and VM. These are used for the venue type. (They shouldn't really be formats at all, but later for fixing that.) In the old UI, the keys for these in the English translation are read-only in the UI. However, you can edit the key in other languages. This seems correct since there might be a better key in those cases. Further, you can edit the name and description for the reserved format in any language, including English

In the new UI you can't change the key in any language -- the root server API must be checking for this. Should be able to change the key for non-English translations. Also, you can't change the name or description either in English.

[alanb2718]

A related bug: it looks like the root server API is preventing making any edits to the English version of one of the reserved formats. The user should be able to change the name or description, although not the key.

[alanb2718]

After these are fixed, check that the changes made in PR #1103 are OK still.

[alanb2718]

Yet another issue: in a non-English language, you can change the key for some random format to be HY, TC, or VM. The new API gives an error if you try to do this. It would definitely be an odd thing to change to one of these keys, but not sure why it needs to be an error. If it stays an error, the new UI should check for it.