Merge pull request #328 from OpenMW/master

Add OpenMW commits up to 31 Oct 2017

apps/openmw/mwgui/inventorywindow.cpp

@@ -768,7 +768,7 @@ namespace MWGui
             }
         }
 
-        if (!found)
+        if (!found || selected == cycled)
             return;
 
         useItem(model.getItem(cycled).mBase);

apps/openmw/mwphysics/physicssystem.cpp

@@ -357,10 +357,9 @@ namespace MWPhysics
                 osg::Vec3f nextpos = newPosition + velocity * remainingTime;
 
                 // If not able to fly, don't allow to swim up into the air
-                if(newPosition.z() < swimlevel &&
-                   !isFlying &&  // can't fly
+                if(!isFlying &&                   // can't fly
                    nextpos.z() > swimlevel &&     // but about to go above water
-                   newPosition.z() <= swimlevel)
+                   newPosition.z() < swimlevel)
                 {
                     const osg::Vec3f down(0,0,-1);
                     velocity = slide(velocity, down);