Streamlining.

More streamlining.  Made tests into “basic_tasks” so that we can use
them in a mode modular way.  For example, creating n folias is now in
the basic_tasks part, but the test is in the test_cases part.

In general, the test cases should be collections of basic_tasks and
simple navigations // clicks that are already functions in Sikuli.  The
steps should not have any “loose” commands that we could integrate into
basic_tasks.