Refactored the logic of getting keyword handler methods from classes, especially the logic for determing is a method implicit Java/Jython method.
Refactored the logic of getting keyword handler methods from classes, especially the logic for determing is a method implicit Java/Jython method.

ldtri0209/robotframework,waldenner/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,waldenner/robotframework,fiuba08/robotframework,waldenner/robotframework,waldenner/robotframework,fiuba08/robotframework,fiuba08/robotframework,fiuba08/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,waldenner/robotframework,fiuba08/robotframework