svn rev #20942: trunk/src/kim/lib/

[lxs@MIT.EDU]

Commit By: lxs
Log Message: 
ticket: new
subject: Avoid duplicate identical dialogs in KIM

Added KIM_DUPLICATE_UI_REQUEST_ERR error so UI can indicate it cancelled
its dialog due to getting multiple identical dialogs at the same time.



Changed Files:
U   trunk/src/kim/lib/kim_credential.c
U   trunk/src/kim/lib/kim_errors.et
U   trunk/src/kim/lib/kim_identity.c
U   trunk/src/kim/lib/kim_selection_hints.c