Also, shrunk the corresponding column and the test name column.

Now it can determine, without looking at the file name, both the module
name and the configuration name (the latter with a little help from the
configuration file).

* In comparison column headers, switched the order of labels, so that
  it's "to" vs "from".

* When a test was present, but not run successfully, put its status in
  the corresponding cell instead of coloring it gray.

Otherwise, Excel ignores line breaks in them.