Extended publishing of libraries to npm (#3786)

* Extended publishing of libraries to npm

* Update source links

* Add some tests before publishing NPM library

* Fix Shapeshift tests

js/npm/parity/test/smoke.spec.js

@@ -0,0 +1,26 @@
+// 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/>.
+
+const parity = require('../');
+
+describe('load the Parity library', function () {
+  it('should no throw any error', () => {
+    expect(parity).to.be.ok;
+
+    expect(parity.Api).to.be.ok;
+    expect(parity.Abi).to.be.ok;
+  });
+});