Fix glob for data directory

This was only including files in the `data` directory, excluding
subdirectories.

Change-Id: I8a276678e0cd495196c11808ad3e3e0cdddf5c9b
Reviewed-on: http://gerrit.causes.com/40952
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>