Make FilePicker context sensitive default paths persistent over logins.

Also, make newview/statemachine a separate project.

indra/newview/llstartup.cpp

@@ -54,6 +54,7 @@
 #include "hippogridmanager.h"
 #include "hippolimits.h"
 #include "floaterao.h"
+#include "statemachine/aifilepicker.h"
 
 #include "llares.h"
 #include "llcachename.h"
@@ -636,6 +637,12 @@ bool idle_startup()
 
 		LLStartUp::handleSocksProxy(false);
 
+		//-------------------------------------------------
+		// Load file- and dirpicker {context, default path} map.
+		//-------------------------------------------------
+
+		AIFilePicker::loadFile("filepicker_contexts.xml");
+
 		//-------------------------------------------------
 		// Init audio, which may be needed for prefs dialog
 		// or audio cues in connection UI.