Allow a different label from name

[opetrushka-private]

Currently label and name would always end up as the same value.

Would like to have something like

<input id="x" name="y">
<label for="x" title="z">z</label>

As name is passed in forms to the server while label is just for the user display.
Name might have restrictions on allowed characters while label doesn't. (have such a case causing issues)

(Might try for a PR)