Move the cffi defintions into nacl.c._lib
Starting add the crypto_box_* functions
Fix prebuilding extension modules
Port the crypto_box* functionality to use the new layout
Move the random implementation over to the new layout
Port the crypto_secretbox implementation to the new layout
Refactor the signing support to the new layout
Move the hash functions over to the new layout
Fix packaging
Ensure there is no implicit compilation again
Merge pull request #42 from dstufft/refactor-c-api

Refactor the C API
Update the documentation configuration
Merge pull request #44 from dstufft/fix-docs

Update the documentation configuration
Mock out cffi
Make it so the docs build without an install
Use the proper thing here
Merge pull request #45 from dstufft/make-docs-build

Make docs build
Use code-block
Merge pull request #46 from dstufft/fix-code-block

Use code-block