Issue#110 : specify endpoint interface configuration
issue#110:
-endpoint_type moved to the config .rb file
-test updated
-endpoint_type error message added
-readme annotated
issue#110:
-removed endpoint_type from Vagrantfile
issue#110 : removed endpoint_type from Vagrantfile
Merge pull request #184 from mael-morel/issue#110

Issue#110 : specify endpoint interface configuration