Makes the idempotent header check more liberal, and
specifically allows it to also recognize

#if !defined(someheader)
#define someheader (1)

or other similar variants.

Fixes the example module documentation ccanlint outputs. The
missing \n meant that it would not validate its own example as valid
documentation (with no explanation of why it was invalid... but that
would be a much larger patch).

We no longer use libccan for tests, but explicit object lists.  This 
will catch missing dependencies.  API tests *do* get the module object
linked in now.
In addition, makefiles now correctly rebuild when a dependency changes
(gcc's -MD here), and when _info.c changes.

Mutate whole triangles sometimes for better results.

works.

(And cute image!)

verbosity.

Remove test that never ran properly anyway (still bug in current talloc 
testsuite).

tools".

Fix str test.

Handle case where test segfaults (fail on *any* non-zero exit)

headers-only)