minor code style cleanup after recent merges

- add a missing license header
- correct some header orderings etc.

src/eccryptoverify.cpp

@@ -1,3 +1,8 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
 #include "eccryptoverify.h"
 
 namespace {