Added 'NearbyMedia' floater (accessable via new button in Media Remote popup)

-Floater utilizes a slightly modified LLPanelNearbyMedia, which has fading and the 'minimal' mode disabled when its parent is a floater.

  -Due to how LL designed LLPanelNearbyMedia, only one instance should ever be allowed at a time.

Added LLNameBox. To avoid having dupilcate code, logic in LLTextBox::fromXML had to be moved to LLTextBox::initFromXML.

  -Perfomed some additional cleanup. 'name' attribute now parsed in LLUICtrl::initFromXML, or as-needed for elements not based off of LLUICtrl.

LLSlider now respects current DrawContext

Fixed the AO toolbar widget reserving too much width.

Made the "wlfAdvSettingsPopup" setting persist, and un-inverted its logic.

Altered ui initilization order. Toolbar/overlay panels now constructed further into login process.

indra/newview/lltexturectrl.cpp

@@ -1175,9 +1175,6 @@ LLXMLNodePtr LLTextureCtrl::getXML(bool save_children) const
 
 LLView* LLTextureCtrl::fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory *factory)
 {
-	std::string name("texture_picker");
-	node->getAttributeString("name", name);
-
 	LLRect rect;
 	createRect(node, rect, parent);
 
@@ -1208,7 +1205,7 @@ LLView* LLTextureCtrl::fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactor
 	}
 
 	LLTextureCtrl* texture_picker = new LLTextureCtrl(
-									name, 
+									"texture_picker", 
 									rect,
 									label,
 									LLUUID(image_id),