Fix loading a savegame when some of its content files were disabled

Fixes #1380

apps/openmw/mwworld/cells.cpp

@@ -314,6 +314,8 @@ bool MWWorld::Cells::readRecord (ESM::ESMReader& reader, int32_t type,
         catch (...)
         {
             // silently drop cells that don't exist anymore
+            reader.skipRecord();
+            return true;
             /// \todo log
         }
 

apps/openmw/mwworld/globals.cpp

@@ -100,7 +100,7 @@ namespace MWWorld
             if (iter!=mVariables.end())
                 iter->second.read (reader, ESM::Variant::Format_Global);
             else
-                reader.skipHRecord();
+                reader.skipRecord();
 
             return true;
         }