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/newview/llpaneldirgroups.cpp

@@ -55,9 +55,9 @@ BOOL LLPanelDirGroups::postBuild()
 {
 	LLPanelDirBrowser::postBuild();
 
-	childSetKeystrokeCallback("name", &LLPanelDirBrowser::onKeystrokeName, this);
+	getChild<LLLineEditor>("name")->setKeystrokeCallback(boost::bind(&LLPanelDirBrowser::onKeystrokeName,this,_1));
 
-	childSetAction("Search", &LLPanelDirBrowser::onClickSearchCore, this);
+	getChild<LLButton>("Search")->setClickedCallback(boost::bind(&LLPanelDirBrowser::onClickSearchCore,this));
 	childDisable("Search");
 	setDefaultBtn( "Search" );