refactoring AlienUtils and ToscaUtils
Merge branch 'develop' of https://github.com/alien4cloud/alien4cloud into develop
[ ALIEN-527] - added support for a deletable blockStorage type
Correct problem websocket
Correct problem websocket
Merge branch 'develop' of https://github.com/alien4cloud/alien4cloud into develop
Merge branch 'develop' of https://github.com/ngouagna/alien4cloud into develop
Merge branch 'develop' of https://github.com/alien4cloud/alien4cloud into develop