Release icewm-2.3.3

Document default winoption format .OPTION.
Permit scroll wheel to control rolling up or down for issue #584.
Add new icewm option --rewrite-preferences to update preferences.
Improve documentation for options for Super/Windows key modifiers.
Make the QuickSwitch modifiers dependent on the type of QuickSwitch:
either from the Alt+Tab or from the "switchkey" keyword for issue #583.
Don't reorder focus when Alt+Tabbing for issue #579.
Defer loading internationalized help text until required.
Add support for conditional expressions to icesh.
Add a toggle option "^" to the "netState" command for issue #580.

shasum icewm-2.3.3.tar.lz c08c87e032edcb4be37448856df8e16ce6549bf7