improved serialization:

- for composite states
- for front-end attributes

[SVN r65429]

libs/msm

@@ -1 +1 @@
-Subproject commit bcdaee834d837ca864a3f9d80152d97a4c57eca8
+Subproject commit 1f15ae7dd5d55d1ce3485d51cb1aca00ce299305