Version 1.18.1

Added several new methods to TabbedCustomDialog:

• enabledOnlyWhenAllChecked
• enabledOnlyWhenNoneChecked
• enabledIfAnyChecked

v1.18.1: Also added methods to CustomTabPanel.

These methods allow for more complex logic regarding a control's enabled state being dependent on one or more checkable controls checked state (similar to how enabledOnlyWhenChecked works).