prepare for adding licenses

add_license.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+for f in **/*.rs; do
+ 	cat license_header $f > $f.new
+	mv $f.new $f
+done

license_header

@@ -0,0 +1,16 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+

util/src/uint.rs

@@ -1,5 +1,4 @@
-// taken from Rust Bitcoin Library (https://github.com/apoelstra/rust-bitcoin)
-// original author: Andrew Poelstra <apoelstra@wpsoftware.net>
+// Code derived from original work by Andrew Poelstra <apoelstra@wpsoftware.net>
 
 // Rust Bitcoin Library
 // Written in 2014 by
@@ -16,10 +15,10 @@
 //
 
 //! Big unsigned integer types
-///!
-///! Implementation of a various large-but-fixed sized unsigned integer types.
-///! The functions here are designed to be fast.
-///!
+//! 
+//! Implementation of a various large-but-fixed sized unsigned integer types.
+//! The functions here are designed to be fast.
+//!
 
 use standard::*;
 use from_json::*;