Prepare for next development iteration

Change-Id: I5d07273d579b38889233165cc03af11ffa7f2a9d
kurento-module-scaffold: Avoid errors in module regeneration

Change-Id: I8cb4e62101469c3941af464b422491a59ffaf3bf
kurento-module-scaffold: Change kurento-client-version in kmd template

Change-Id: Iacbfde9840d20b93ccf5c66a6f36a9cce9ef5b79
Prepare release 5.0.2

Change-Id: I08cb9bd50c75c756c10f78f6906e2a5af4171e14