enabled quitting
added exit as an alias for quiting
Multiple Tasks can be scheduled at the same time, as long as they are unique
locks on all controller operations
added abort command
removed restart command
added breaks
changed Taskmanager to rely on the TaskPerformer interface
started work on sketch tasks
rearranged zsketch's use of taskmanager
prefer isempty over equals ""
now sketch process tasks in the beginning of each draw call
Zeigen now accepts messages on the command line, remember to quote them
added ability to set seed by messages
added window scaling
fixed window sizing
fixed window sizing
trims window parameters
Added offsets