Revert "silent LaTeX compilation"

This reverts commit 29db40e2c769e70cfc6f9361fdadeff822a1346c.
Revert "include summary in the test output"

This reverts commit 7f825c7606f59f5c7ed4807b8ef0c1982f94d846.
Revert "don't produce test files for failing tests"

This reverts commit 7c8eec302795bb3971ca4ea439d330336787553c.
Revert "put test cases into individual files"

This reverts commit e6b2ccf3e753ae373055b9025192c10f59c4355a.
use standalone for figures; reorganization of data/ folder