add scenarios for deleting a voicemail
add route for deleting a voicemail
add creation voicemail
fix error messages sent by restapi
fix typos in scenario voicemail numbers
add traceback when erorr is raised in RESTAPI 1.0
fix unittests in restapi after refactoring dao
Merge branch '4683_voicemail_creation'

Conflicts:
	xivo-restapi/acceptance/features_1_1/voicemails.feature
	xivo-restapi/xivo_restapi/resources/voicemails/actions.py
	xivo-restapi/xivo_restapi/resources/voicemails/tests/test_actions.py
fix pep8 warnings
rename steps to use number and context
add edit voicemail
add edit voicemail
add test : delete a device associated to a line
add tests for extensions outside user range
Merge branch 'master' into missing-restapi-tests-2
Merge branch 'missing-restapi-tests-2'
get rid of now totally useless analyse.py
Merge branch 'master' into extension_validation
Merge branch 'extension_validation'
Add scenario when associating an extension outside of context range