Uint & Hash types. (#10)

* Uint & Hash types.

* Fix author

* Rename crate to primitives.

substrate/src/main.rs

@@ -14,6 +14,10 @@
 // You should have received a copy of the GNU General Public License
 // along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
 
+//! Polkadot CLI
+
+#![warn(missing_docs)]
+
 extern crate polkadot_cli;
 
 fn main() {