no local file loading, animeditor tweaks/bugfixes

Gave up on local file loading as a feature since clients won't have the
same data.

Fixed animeditor errors regarding creating a new Animation with no name;
also enhanced visual cues and added auditory cues so that when a user
tries to do this, they know they are doing something wrong.

Animation editor no longer shows balanim part animations in its
Registered Animations or SubAnimations.