Sharing on Facebook, Twitter and Google+

[FIXED]     Font of navbar.
[FIXED]     A few compile fixes.
[IMPROVED]  Made properties nonatomic.
[ADDED]     Support for facebook, twitter and google+ sharing.

External/google-plus-ios-sdk/OpenSource/GTL/GTLPlus/GTLServicePlus.h

@@ -0,0 +1,61 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//
+//  GTLServicePlus.h
+//
+
+// ----------------------------------------------------------------------------
+// NOTE: This file is generated from Google APIs Discovery Service.
+// Service:
+//   Google+ API (plus/v1moments)
+// Description:
+//   The Google+ API enables developers to build on top of the Google+ platform.
+// Documentation:
+//   http://developers.google.com/+/api/
+// Classes:
+//   GTLServicePlus (0 custom class methods, 0 custom properties)
+
+#if GTL_BUILT_AS_FRAMEWORK
+  #import "GTL/GTLService.h"
+#else
+  #import "GTLService.h"
+#endif
+
+@interface GTLServicePlus : GTLService
+
+// No new methods
+
+// Clients should create a standard query with any of the class methods in
+// GTLQueryPlus.h. The query can the be sent with GTLService's execute methods,
+//
+//   - (GTLServiceTicket *)executeQuery:(GTLQuery *)query
+//                    completionHandler:(void (^)(GTLServiceTicket *ticket,
+//                                                id object, NSError *error))handler;
+// or
+//   - (GTLServiceTicket *)executeQuery:(GTLQuery *)query
+//                             delegate:(id)delegate
+//                    didFinishSelector:(SEL)finishedSelector;
+//
+// where finishedSelector has a signature of:
+//
+//   - (void)serviceTicket:(GTLServiceTicket *)ticket
+//      finishedWithObject:(id)object
+//                   error:(NSError *)error;
+//
+// The object passed to the completion handler or delegate method
+// is a subclass of GTLObject, determined by the query method executed.
+
+@end