It is badly implemented as is and does not offer value over
writing symbolic functions.

We never really used or trusted it.

Do not annotate FiniteElements anymore, further split driver code

Conflicts:
	python/dune/perftool/pdelab/driver/taskbased.py

Implement blockstructuring for Q1

See merge request !159

Implement a CI system

Closes #89

See merge request !163

`duneci-statndard-test` gained the ability to run the tests with
-j$DUNECI_PARALLEL, which was the last thing that duneci-perftool-small-test
did specially.  So use that.

It accepts the images now.

It is "perftool", not "perftools".