Stubrenderer Update

this commit includes :
- stubrenderer.yang removed
- stubrenderer will now gets his RPCs from
transportpce-service-path.yang.
- solving the following javadoc warning
'IllegalCatch : Catching "Exception" is not allowed'.
- update servicehandler dependency
- move stubpce and stubrenderer to tests folder
- add dependency 'Version update to 1.6 of
the service-path model'.

Change-Id: I3fe58dae7e613517312de69a13877dd16bf4f4e4
Signed-off-by: Martial COULIBALY <martial.coulibaly@gfi.fr>
Signed-off-by: Olivier RENAIS <olivier.renais@orange.com>
(cherry picked from commit 54d80c088d157e5f02ccad86eedcca477ef0e8a8)