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/llscrollingpanellist.h

@@ -57,7 +57,7 @@ class LLScrollingPanelList : public LLUICtrl
 {
 public:
 	LLScrollingPanelList(const std::string& name, const LLRect& rect)
-		:	LLUICtrl(name, rect, TRUE, NULL, NULL, FOLLOWS_LEFT | FOLLOWS_BOTTOM ) {}
+		:	LLUICtrl(name, rect, TRUE, NULL, FOLLOWS_LEFT | FOLLOWS_BOTTOM ) {}
 
 	typedef std::deque<LLScrollingPanel*>	panel_list_t;