Code review comment for lp:~widelands-dev/widelands/compiler_warnings_062017

* Mmmh, looks like the bzr -> git thingy failed,
because .travis.sh definitly is _in_ that branch.

* the gcc fixes did no fix the all fallthrogh / default: warnings for LLVM, sigh

* and yes I still see these:
      src/scripting/lua_map.cc:6053:26: warning: instantiation of function
      'Widelands::MapHollowRegion<Widelands::Area<Widelands::Coords, unsigned short> >::MapHollowRegion' required here, but no definition is available
      [-Wundefined-func-template]
        MapHollowRegion<Area<>> mr(map, har);

What now?