move *.browser and *.node to browser/* and node/*

...this should leave the lib folder a little bit less cluttered.

lib/Key.js

@@ -1,5 +1,5 @@
 if (process.versions) {
-  module.exports = require('./Key.node');
+  module.exports = require('./node/Key');
   return;
 }
-module.exports = require('./Key.browser');
+module.exports = require('./browser/Key');

lib/Point.js

@@ -1,5 +1,5 @@
 if (process.versions) {
-  module.exports = require('./Point.node');
+  module.exports = require('./node/Point');
   return;
 }
-module.exports = require('./Point.browser');
+module.exports = require('./browser/Point');

lib/Key.browser.js → lib/browser/Key.js

@@ -1,4 +1,4 @@
-var ECKey = require('../browser/vendor-bundle.js').ECKey;
+var ECKey = require('../../browser/vendor-bundle.js').ECKey;
 var buffertools = require('buffertools');
 
 var Key = function() {

lib/Point.browser.js → lib/browser/Point.js

@@ -4,11 +4,11 @@ var imports = require('soop').imports();
 var Key = imports.Key || require('./Key'); 
 var bignum = imports.bignum || require('bignum');
 var assert = require('assert');
-var ECKey = require('../browser/vendor-bundle.js').ECKey;
-var ECPointFp = require('../browser/vendor-bundle.js').ECPointFp;
-var ECFieldElementFp = require('../browser/vendor-bundle.js').ECFieldElementFp;
-var getSECCurveByName = require('../browser/vendor-bundle.js').getSECCurveByName;
-var BigInteger = require('../browser/vendor-bundle.js').BigInteger;
+var ECKey = require('../../browser/vendor-bundle.js').ECKey;
+var ECPointFp = require('../../browser/vendor-bundle.js').ECPointFp;
+var ECFieldElementFp = require('../../browser/vendor-bundle.js').ECFieldElementFp;
+var getSECCurveByName = require('../../browser/vendor-bundle.js').getSECCurveByName;
+var BigInteger = require('../../browser/vendor-bundle.js').BigInteger;
 var should = require('chai').should();
 
 //a point on the secp256k1 curve

lib/Point.node.js → lib/node/Point.js

@@ -1,7 +1,7 @@
 "use strict";
 
 var imports = require('soop').imports();
-var Key = imports.Key || require('./Key'); 
+var Key = imports.Key || require('../Key'); 
 var bignum = imports.bignum || require('bignum');
 var assert = require('assert');