(Loading...) text in ticker now goes away after 10 seconds. Some streams simply do not provide artist/title metadata. Only parse metadata every half second (opposed to every frame). Also fixed paused text getting clobbered.

indra/newview/shfloatermediaticker.h

@@ -37,6 +37,8 @@ private:
 	std::string mszArtist;
 	std::string mszTitle;
 	LLTimer mScrollTimer;
+	LLTimer mLoadTimer;
+	LLTimer mUpdateTimer;
 	S32 mArtistScrollChars;
 	S32 mTitleScrollChars;
 	S32 mCurScrollChar;