print log records to console
implemented click-n-drag line reordering
implemented using html5 drag and drop event system
added constructor that takes the controller lists directly
make undo action when dragging to reorder lines
refactored to put a superclass over the old base Action class that doesn't know about a tab line
made undo and redo commands not tab line commands
removed unused code
fixed bug where there was no cursor for redoing strum append
made undo history and clipboard non static
fix #87