Mats UI.

Includes Chalice Yao's pause agent on attachment selection in LLSelectMgr::updateSelectionCenter()
Includes some of Cinder Roxley's enhancements to the build floater for materials (flip buttons, sync materials, consistent control hiding)
Includes Ansariel Hiller's fix for FIRE-8298 [BUG-869] [MAINT-1961], since this updates lltexturectrl.* to have related behaviors.
Switches from using MIN_MANHATTAN_DIST for threshold in LLToolDragAndDrop to using the existing DragAndDropDistanceThreshold debug, like upstream.

Translators:
panel_tools_texture.xml should now be translated, floater_tools.xml should have the old panel removed.
strings.xml now has "use_texture" string.
notifications.xml Now has "LivePreviewUnavailable" alert. (don't forget to translate the ignoretext)

indra/newview/pipeline.h

@@ -413,6 +413,7 @@ public:
 	static void setRenderHighlights(BOOL val);
 	static void toggleRenderHighlights(void* data);
 	static BOOL getRenderHighlights(void* data);
+	static void setRenderHighlightTextureChannel(LLRender::eTexIndex channel); // sets which UV setup to display in highlight overlay
 
 	static void updateRenderDeferred();
 	static void refreshCachedSettings();
@@ -837,6 +838,10 @@ public:
 	static BOOL				sRenderBeacons;
 	static BOOL				sRenderHighlight;
 
+	// Determines which set of UVs to use in highlight display
+	//
+	static LLRender::eTexIndex sRenderHighlightTextureChannel;
+
 	//debug use
 	static U32              sCurRenderPoolType ;
 };