Better names for animation producer classes (just the animation name and no abbreviations).
Fixed #17 by using a newly added cancel-method on the animator instead of the finish-method.
Added reset-method to the AnimationProducer Interface just for the logic of it.
Commented out all code in the various classes handling the manual addition of nodes at specific positions between their siblings. Have to properly redo this feature soon.
Thanks @Sanjo for making the names of the animation-classes shorter (#10, 8afbc9157c1efe931e20cbaa56bec28f7f0b8631) and giving Interface and abstract class more appropriate names.
#17 wasn't really fixed i noticed. Now it is. Erased the cancel-method again and used finish + proceed instead right from the animComboBox before setting the SingleFinalFrame Algorithm. Not 100% certain why this (only?) works like that - my understanding of threads isn't very advanced yet.
Removed unnecessary calls to animator.finish(); and animator.proceed(); when changing to animation mode "none". (Also fixes #17)