Merge branch 'master' into merge-master-to-taglib2

Conflicts:
	ConfigureChecks.cmake
	taglib/toolkit/tbytevector.cpp
	taglib/toolkit/tstring.cpp
	taglib/xm/xmfile.cpp
	tests/test_wav.cpp

bindings/c/tag_c.cpp

@@ -260,7 +260,7 @@ void taglib_tag_free_strings()
   if(!stringManagementEnabled)
     return;
 
-  for(List<char *>::Iterator it = strings.begin(); it != strings.end(); ++it)
+  for(List<char *>::ConstIterator it = strings.begin(); it != strings.end(); ++it)
     free(*it);
   strings.clear();
 }