These seem to be the wrong way around.

So that we can build everything together.

We want to stop aes_* and sha_* functions leaking out of our .so, as well as
internal _olm_* symbols.

This also means we need to link the unit tests against the objects. Possibly we
should distinguish between unit tests and integration tests.

Now that we have C and C++, we need to split the compile and link steps
(because we need different flags for the C and C++ files), so this is
easier with a Makefile.

Replace the python scripts for building the shared lib and tests with a
Makefile, which makes it easier to handle a mix of C and C++.

We don't want anything which does dynamic memory allocation in the library.

* We only use 8-byte MACs
* The version byte is \x03, not \x01

Remove the (now non-functional) declarations of olm_set_log_level in the C and
js wrappers.

Concerns have been raised that including logging functionality makes it harder
to audit the implementation to ensure that no secret information is leaked. We
are therefore removing it from the master branch.

Make a few bits of the Olm spec a bit clearer

It would be nice if the tests tested what we'd built, not something different.

This fixes an incorrect re-declaration of ed25519_sign.

Implement header files for some of the other library bits so that we don't need
to declare functions in crypto.cpp.

something about 'global' not defined

Build into 'javascript' dir and tell package.json exactly which files we care
about.

switch from /usr/bin/python to /usr/bin/env python. this doesn't help folks whose python path points at python3 (e.g. Arch linux) though, but I see no choice than they have to change the shebangs, as we do on Synapse.  For instance, OSX doesn't have a python2 symlink, otherwise we'd use /usr/bin/env python2 shebang.