Remember window sizes, add new map popup window (#54)

* save window state on app close

* new map popup window

* window title, groupItem fix

* fix new map heal location generation

* fix newmappopup form size

* empty map name check, increase max dimensions

* tool tips

* delete new window

* fix mainwindow.ui new map action

* use new config for window state

* clean window restore config settings

* extend "Add New Map" to different MapSortOrders

* fix crash when creating new map from unloaded layout

* fix new map from layout extra files

include/core/map.h

@@ -32,7 +32,7 @@ public:
     QString layout_id;
     QString location;
     QString requiresFlash;
-    QString isFlyable; // TODO: implement this
+    QString isFlyable;
     QString weather;
     QString type;
     QString unknown;
@@ -43,6 +43,7 @@ public:
     QString battle_scene;
     MapLayout *layout;
     bool isPersistedToFile = true;
+    bool needsLayoutDir = true;
     QImage collision_image;
     QPixmap collision_pixmap;
     QImage image;