Allow multielement list as value for 'constant' and 'path-constant'.

Thanks to Ilia Krustev for bug report and initial patch.


[SVN r27976]

tools/build

@@ -1 +1 @@
-Subproject commit b43fe0e57a743c15b2794369075be8cb570fa382
+Subproject commit 7c991387a620f400550e269f7cc195e09376be4d