reorganizing: moving individual class files to subdirectory (uncluttering)
update documentation
rename image directory for editor resources
again, organizing js by moving constituent classes to subdirectory (those combined in a merged or min version)
update documentation
rename css directory (dropping the "v2" suffix); making all of the consitutent classes for editor avaialble (in subdirectory);
update merged & minified JavaScript;
more renaming
css fix for editor