487761: Allow credential fields to be toggled

setNeedsRepositoryCredentials() now affects the editability of
credentials fields after control creation.

Change-Id: I1cc5c8f61f1274dd052c98e0d5ab993504e0dee9
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=487761
Signed-off-by: James Kennedy <james.kennedy@tasktop.com>
2 files changed