Dialog: adjusting minHeight when the height option is less than the minHeight to prevent unexpectedly large dialogs.  Fixes #4101 (Ui Dialog height does not adjust minHeight).  Fixes #4122 (Dialog's content area isn't resized when height is adjusted).
Dialog: adjusting minHeight when the height option is less than the minHeight to prevent unexpectedly large dialogs.  Fixes #4101 (Ui Dialog height does not adjust minHeight).  Fixes #4122 (Dialog's content area isn't resized when height is adjusted).

GrayYoung/jQuery.UI.Extension,GrayYoung/jQuery.UI.Extension