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/GTMHTTPFetcherLogging.h

@@ -0,0 +1,85 @@
+/* Copyright (c) 2010 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.
+ */
+
+#import "GTMHTTPFetcher.h"
+
+// GTM HTTP Logging
+//
+// All traffic using GTMHTTPFetcher can be easily logged.  Call
+//
+//   [GTMHTTPFetcher setLoggingEnabled:YES];
+//
+// to begin generating log files.
+//
+// Log files are put into a folder on the desktop called "GTMHTTPDebugLogs"
+// unless another directory is specified with +setLoggingDirectory.
+//
+// In the iPhone simulator, the default logs location is the user's home
+// directory in ~/Library/Application Support.  On the iPhone device, the
+// default logs location is the application's documents directory on the device.
+//
+// Tip: use the Finder's "Sort By Date" to find the most recent logs.
+//
+// Each run of an application gets a separate set of log files.  An html
+// file is generated to simplify browsing the run's http transactions.
+// The html file includes javascript links for inline viewing of uploaded
+// and downloaded data.
+//
+// A symlink is created in the logs folder to simplify finding the html file
+// for the latest run of the application; the symlink is called
+//
+//   AppName_http_log_newest.html
+//
+// For better viewing of XML logs, use Camino or Firefox rather than Safari.
+//
+// Each fetcher may be given a comment to be inserted as a label in the logs,
+// such as
+//   [fetcher setCommentWithFormat:@"retrieve item %@", itemName];
+//
+// Projects may define STRIP_GTM_FETCH_LOGGING to remove logging code.
+
+#if !STRIP_GTM_FETCH_LOGGING
+
+@interface GTMHTTPFetcher (GTMHTTPFetcherLogging)
+
+// Note: the default logs directory is ~/Desktop/GTMHTTPDebugLogs; it will be
+// created as needed.  If a custom directory is set, the directory should
+// already exist.
++ (void)setLoggingDirectory:(NSString *)path;
++ (NSString *)loggingDirectory;
+
+// client apps can turn logging on and off
++ (void)setLoggingEnabled:(BOOL)flag;
++ (BOOL)isLoggingEnabled;
+
+// client apps can turn off logging to a file if they want to only check
+// the fetcher's log property
++ (void)setLoggingToFileEnabled:(BOOL)flag;
++ (BOOL)isLoggingToFileEnabled;
+
+// client apps can optionally specify process name and date string used in
+// log file names
++ (void)setLoggingProcessName:(NSString *)str;
++ (NSString *)loggingProcessName;
+
++ (void)setLoggingDateStamp:(NSString *)str;
++ (NSString *)loggingDateStamp;
+
+// internal; called by fetcher
+- (void)logFetchWithError:(NSError *)error;
+- (BOOL)logCapturePostStream;
+@end
+
+#endif