Fix parsing on Windows

Replace windows EOL by Unix EOL

src/diff-parser.js

@@ -124,6 +124,7 @@
 
     var diffLines =
       diffInput.replace(/\\ No newline at end of file/g, '')
+        .replace(/\r\n?/g, '\n')
         .split('\n');
 
     /* Diff */

test/diff-parser-tests.js

@@ -0,0 +1,47 @@
+var assert = require('assert');
+
+var DiffParser = require('../src/diff-parser.js').DiffParser;
+
+describe('DiffParser', function() {
+  describe('generateDiffJson', function() {
+
+    it('should parse linux with \n diff', function() {
+      var diff =
+        'diff --git a/sample b/sample\n' +
+        'index 0000001..0ddf2ba\n' +
+        '--- a/sample\n' +
+        '+++ b/sample\n' +
+        '@@ -1 +1 @@\n' +
+        '-test\n' +
+        '+test1r\n';
+      var result = Diff2Html.getJsonFromDiff(diff);
+      var file1 = result[0];
+      assert.equal(1, result.length);
+      assert.equal(1, file1.addedLines);
+      assert.equal(1, file1.deletedLines);
+      assert.equal('sample', file1.oldName);
+      assert.equal('sample', file1.newName);
+      assert.equal(1, file1.blocks.length);
+    });
+
+    it('should parse windows with \r\n diff', function() {
+      var diff =
+        'diff --git a/sample b/sample\r\n' +
+        'index 0000001..0ddf2ba\r\n' +
+        '--- a/sample\r\n' +
+        '+++ b/sample\r\n' +
+        '@@ -1 +1 @@\r\n' +
+        '-test\r\n' +
+        '+test1r\n';
+      var result = Diff2Html.getJsonFromDiff(diff);
+      var file1 = result[0];
+      assert.equal(1, result.length);
+      assert.equal(1, file1.addedLines);
+      assert.equal(1, file1.deletedLines);
+      assert.equal('sample', file1.oldName);
+      assert.equal('sample', file1.newName);
+      assert.equal(1, file1.blocks.length);
+    });
+
+  });
+});