Ver. 1.2.4: Independent items compatibility

This is a generally recommended update.

Added features:

• Added named parameter preferBaseItemId to FlipbooksRule.prototype.testWithoutExpressions (true by default).

  This adds YEP_ItemCore (independent items) compatibility for equipment filters.

The compatibility mode is enabled by default. Dependent plugins should add a matching compatibility tweak parameter to control this argument, but should generally default it to true/ON.