Added create issue

Closes gh-291

Author: dafortune

README.md

@@ -386,6 +386,23 @@ To read all the issues of a given repository
 issues.list(options, function(err, issues) {});
 ```
 
+To create an issue
+
+```js
+var options = {
+  title: "Found a bug",
+  body: "I'm having a problem with this.",
+  assignee: "assignee_username",
+  milestone: 1,
+  labels: [
+    "Label1",
+    "Label2"
+  ]
+};
+
+issues.create(options, function(err, issue) {});
+```
+
 To comment in a issue
 
 ```js

src/github.js

@@ -1008,6 +1008,10 @@
       Github.Issue = function (options) {
          var path = '/repos/' + options.user + '/' + options.repo + '/issues';
 
+         this.create = function(options, cb) {
+            _request('POST', path, options, cb);
+         };
+
          this.list = function (options, cb) {
             var query = [];
 
@@ -1115,4 +1119,4 @@
    };
 
    return Github;
-}));
+}));

test/test.issue.js

@@ -17,6 +17,21 @@ describe('Github.Issue', function() {
       issues = github.getIssues(testUser.USERNAME, 'TestRepo');
    });
 
+   it('should create issue', function(done) {
+      issues.create({
+         title: 'New issue',
+         body: 'New issue body'
+      }, function(err, issue, xhr) {
+         should.not.exist(err);
+         xhr.should.be.instanceof(XMLHttpRequest);
+         should.exist(issue.url);
+         issue.title.should.equal('New issue');
+         issue.body.should.equal('New issue body');
+
+         done();
+      });
+   });
+
    it('should list issues', function(done) {
       issues.list({}, function(err, issues, xhr) {
          should.not.exist(err);