redesigned existing SwingWorkers. Now there is only one thread working
and the quite "dirty" hack of #134 is not necessary anymore.
Created an abstract worker for all future SwingWorkers to inherit from
which has some methods convenient for all SwingWorker implementations.
First step to #131, next commits will bring SwingWorkers for (hopefully)
every algorithm that needs one.
Added visual progress to the progress bar, not only a indeterminate one.
Status bar hides now when there is nothing displayed to avoid taking
space for nothing.
Merge branch 'master' of https://github.com/fcatools/conexp-ng.git
Finished redesign of SwingWorkers. Still need to add more SwingWorkers
for other tasks plus assuring that the new progress bar does not
overwrite itself when another action is started.
Removed duplicate classes and simplified some calculations.
Removed some more remainings of the easteregg so there are no errors
anymore.
Redesigned the status bar to show progress bars for each calculations
and not just one for all.
Progress description is now inside progress bar and not as a label next
to the bar.
Finished redesign of SwingWorkers to add more workers for some
algorithms (#131).