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/llui/lllineeditor.cpp

@@ -2555,9 +2555,6 @@ LLXMLNodePtr LLLineEditor::getXML(bool save_children) const
 // static
 LLView* LLLineEditor::fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory *factory)
 {
-	std::string name("line_editor");
-	node->getAttributeString("name", name);
-
 	LLRect rect;
 	createRect(node, rect, parent, LLRect());
 
@@ -2584,7 +2581,7 @@ LLView* LLLineEditor::fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory
 	S32 border_thickness = 1;
 	node->getAttributeS32("border_thickness", border_thickness);
 
-	LLLineEditor* line_editor = new LLLineEditor(name,
+	LLLineEditor* line_editor = new LLLineEditor("line_editor",
 								rect, 
 								text, 
 								font,