Add new LoginDialog control and demo
Remove cancel button by default, and change the default text of the Affirmative button to "Login"
Remove unnecessary code
changing so that you can change the Cancel button visibility correctly.
Fixing casing so that the first letters are uppercase.
Fixing the Demo for the case change on username and password to Username and Password
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Merge pull request #1276 from djengineerllc/master

Add new LoginDialog control and demo