Make spreadsheet handle resize nicely
fix hover on .window now that we have gradients
include one more level Order -> Part -> Station in gantt
remove name error introduced probably by mistake
handle pydot unavailability at a later point
put gantt above of job schedule sheet
Simplify the way attainment is evaluated
support multiple replications in Exit stat output
Exit stat: use more meaningful names for some metrics
Exit: fix calculation of unitsThroughput when there's more than one replication

Also fix a problem that name was sometimes unitThroughput
use "Default" class when not specified
instanciate BatchScrapMachine the new way