Merge pull request #451 from maneljara/sprint015release

Sprint 0.15 Release
Merge pull request #464 from logoff/release-0.16

Release 0.16
Merge branch 'develop' of https://github.com/dana-i2cat/opennaas
Merge branch 'develop' of https://github.com/dana-i2cat/opennaas
build produces a WAR with version in the file name
Merge pull request #470 from logoff/feature/opennaas-gui-vcpe-war-version

Feature/opennaas gui vcpe war version