Expanded pointer sanity test.

git-svn-id: svn://graphite/diminuto/trunk@553 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Still working on unit test suite.

git-svn-id: svn://graphite/diminuto/trunk@554 5dfbf39a-1452-0410-8a97-9e58fedde8e3
CHeckpoint while debugging swap.

git-svn-id: svn://graphite/diminuto/trunk@555 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Unit test now implements recursive find.

git-svn-id: svn://graphite/diminuto/trunk@556 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Merge branch 'master' of https://github.com/coverclock/com-diag-diminuto

Conflicts:
	Diminuto/tst/unittest-tree.c