Add ensure for runtime assertion checking
First cut mmap store
Add in LZ4 store skel
Squashed 'test/theft/' content from commit 42e182f

git-subtree-dir: test/theft
git-subtree-split: 42e182f738e062b63c88dccd69b6c20618c3297d
Merge commit '1edb287df8d87b5124c2a0e11d6dee2c7516f97d' as 'test/theft'
Squashed 'test/greatest/' content from commit 8681bc7

git-subtree-dir: test/greatest
git-subtree-split: 8681bc731247e4de48d0ced9ab93289f7e242e1a
Merge commit '0c5b20d4030cdef9c85af10aee866e1754eb299e' as 'test/greatest'
Initial test rigging
[Build] Add travis ci to the project