Terrain: re-added "distant land=off" path

Still a hack, but the overhead of building and traversing the quad tree appears negligible.

components/CMakeLists.txt

@@ -75,7 +75,7 @@ add_component_dir (translation
 
 add_definitions(-DTERRAIN_USE_SHADER=1)
 add_component_dir (terrain
-    quadtreenode chunk world storage material buffercache compositemap defs
+    quadtreenode chunk world storage material buffercache defs
     )
 
 add_component_dir (loadinglistener

components/terrain/quadtreenode.cpp

@@ -282,6 +282,9 @@ bool QuadTreeNode::update(const Ogre::Vector3 &cameraPos)
     size_t wantedLod = 0;
     float cellWorldSize = mTerrain->getStorage()->getCellWorldSize();
 
+    if (!mTerrain->getDistantLandEnabled() && dist > cellWorldSize)
+        return true;
+
     if (dist > cellWorldSize*64)
         wantedLod = 6;
     else if (dist > cellWorldSize*32)