Add Ctrl + q to exit application
FIX: By default image watermark field is empty. Do not trow
an error if field is empty
FIX: Watermark choose value from updated text list.
ADD: Artscript 2 icon
FIX: Add tkDND licence (FreeBSD)
FIX #23: Calculate best sharpeness.

The more sharpness the more jagged edges and artifacts.
Make IM decide on radius based on sigma value.
Reduce amount strength
FIX: Image watermark not working when loaded from any setting file

Update all dict wrong append functions to use set instead.

CODE: Removed setBindAction, OptionSelect, TurnOffChild, TurnOffParent
Updated all watermark event to use a simpler function

Added eventWatermark
FIX: Removed orphan checkbox at the bottom.

On off states can now be manipulated double clicking tabs
If there is a marker in the tab that operation has values to be
applyed. This makes easier to see where are values set.