Added new button to open the link of the message in browser or copy the link of the message.

Added "RSS: " for the forum feeds.
Parse the feedburner:origLink in the rss feed.
Moved download functions to a new class CURLWrapper for easy use.
Added two new functions (currently only for local feeds for testing):
- embed images into the message (works for Qt 4.7 and higher)
- save complete web page

git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.5-gxs-b1@5399 b45a01b8-16f6-495d-af2f-9b41ad6348cc

plugins/FeedReader/gui/AddFeedDialog.h

@@ -50,6 +50,7 @@ private slots:
 	void useStandardUpdateIntervalToggled();
 	void useStandardProxyToggled();
 	void typeForumToggled();
+	void denyForumToggled();
 	void validate();
 	void createFeed();