Refactor into latest design decision

C is an implementation detail of the wrapper API, so we go with 'bindings'.
Also create/fix some namespaces.
diff --git a/cryptography/bindings/__init__.py b/cryptography/bindings/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/cryptography/bindings/__init__.py
diff --git a/cryptography/c/__init__.py b/cryptography/bindings/openssl/__init__.py
similarity index 92%
rename from cryptography/c/__init__.py
rename to cryptography/bindings/openssl/__init__.py
index 09bf497..6c803fb 100644
--- a/cryptography/c/__init__.py
+++ b/cryptography/bindings/openssl/__init__.py
@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from cryptography.c.api import api
+from cryptography.bindings.openssl import api
 
 
 __all__ = ["api"]
diff --git a/cryptography/c/api.py b/cryptography/bindings/openssl/api.py
similarity index 93%
rename from cryptography/c/api.py
rename to cryptography/bindings/openssl/api.py
index ea8827f..3cc6a0e 100644
--- a/cryptography/c/api.py
+++ b/cryptography/bindings/openssl/api.py
@@ -15,7 +15,9 @@
 
 
 class API(object):
-    """OpenSSL API wrapper."""
+    """
+    OpenSSL API wrapper.
+    """
 
 
 api = API()
diff --git a/tests/bindings/__init__.py b/tests/bindings/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/bindings/__init__.py
diff --git a/cryptography/c/__init__.py b/tests/bindings/test_openssl.py
similarity index 80%
copy from cryptography/c/__init__.py
copy to tests/bindings/test_openssl.py
index 09bf497..9d63722 100644
--- a/cryptography/c/__init__.py
+++ b/tests/bindings/test_openssl.py
@@ -11,7 +11,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from cryptography.c.api import api
+from cryptography.bindings.openssl import api
 
 
-__all__ = ["api"]
+class TestOpenSSL(object):
+    def test_api_exists(self):
+        assert api
diff --git a/tests/test_c.py b/tests/test_c.py
deleted file mode 100644
index c50968e..0000000
--- a/tests/test_c.py
+++ /dev/null
@@ -1,6 +0,0 @@
-from cryptography.c import api
-
-
-class TestC(object):
-    def test_api_exists(self):
-        assert api