Still working on unit test suite.

git-svn-id: svn://graphite/diminuto/trunk@557 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Added blackheight check ("bh(x)" from Cormen et al.) to audit in unit test.

git-svn-id: svn://graphite/diminuto/trunk@558 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Check pointing before refactoring unit test.

git-svn-id: svn://graphite/diminuto/trunk@559 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Moved audit from tree unit test in to module (similar to list).

git-svn-id: svn://graphite/diminuto/trunk@560 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Added containerof and offsetof unit tests (which passed).

git-svn-id: svn://graphite/diminuto/trunk@561 5dfbf39a-1452-0410-8a97-9e58fedde8e3