UI cleanup.

-Added ui-local transformation matrix.
-Gutted legacy commitcallbacks throughout ui widget ctors.
-Created filter_editor ui widget which issues commit on keypress
   -search_editor commits on focus loss/enter press
   -search_editor and filter_editor now have a built in 'x' button to clear text.
-LLComboBox::setPrearrangeCallback now uses boost::function
-LLComboBox::setTextEntryCallback now uses boost::function
-LLLineEditor::setKeystrokeCallback now uses boost::function
-LLLineEditor::setPrevalidate now uses boost::function
-LLPanel::childSetKeystrokeCallback removed
-LLPanel::childSetPrevalidate removed
-LLPanel::childSetActionTextbox now uses boost::function
-LLTextBox::setClickedCallback now uses boost::function
-LLTextEditor::setKeystrokeCallback added.
-Cleaned up JCFloaterAreaSearch

indra/llui/llnotifications.cpp

@@ -880,6 +880,7 @@ bool LLNotificationChannelBase::updateItem(const LLSD& payload, LLNotificationPt
 		assert(!wasFound);
 		if (passesFilter)
 		{
+			llinfos << "Inserting " << pNotification->getName() << llendl;
 			// not in our list, add it and say so
 			mItems.insert(pNotification);
 			abortProcessing = mChanged(payload);