Several small bugfixes

- Wrong image in generic lever dialog
- Crash in adventure notes dialog
- Incorrect spell costs shown on second page of spellcasting dialog
- Enable messages in "if context" node, but only for legacy scenarios
- Fix recorded dialogue not working
- Fix special items leaking between scenarios
- Fix training dialog
- Fix scenario editor sometimes crashing on scenarios that it wrote itself

src/pcedit/pc.editors.cpp

@@ -476,7 +476,7 @@ static bool spend_xp_event_filter(cDialog& me, std::string item_hit, eKeyMod mod
 		for(int i = 0; i <= 20; i++) {
 			std::string id_base = boost::lexical_cast<std::string>(eSkill(i));
 			if(item_hit.length() < id_base.length() + 2) continue;
-			if(id_base.compare(0, id_base.length(), item_hit)) {
+			if(id_base.compare(0, id_base.length(), item_hit) == 0) {
 				which_skill = eSkill(i);
 				break;
 			}