hippo:application should be nt:base and not nt:unstructured

<<<<< repository.cnd:

[hippo:application] > nt:unstructured orderable

.....

[hippo:configuration] > nt:base
....
+ hippo:frontend (hippo:application) = hippo:application

>>>>>> Should become

[hippo:application] > nt:base

[hippo:applications] > nt:base orderable
+ * (hippo:application)

...

[hippo:configuration] > nt:base
...
+ hippo:frontend (hippo:applications) = hippo:applications
....