add feature to unregister a puppet agent from master
refactor to generalize chef client delete to node delete to include puppet
cleaning unused imports
modifications for after integration tests
merge from develop
solving integration issues
Merge branch 'bug/CLAUDIA-3751-SDCNohttps' of https://pdihub.hi.inet/fiware/fiware-sdc into feature/chef-puppetNodeDelete
integration bug fix
incle puppet module in site.pp generation
fix empty directories to avoid puppet error
refactor node certificate naming strategy
merge from develop  and puppet headers fix
add delete module feature
add load and find to NodeResource
Merge branch 'develop' of https://github.com/alberts-tid/fiware-sdc into feature/chef-puppetNodeDelete
fix delete module response to a correct response code
Merge branch 'develop' of https://github.com/telefonicaid/fiware-sdc into feature/chef-puppetNodeDelete
add http headers config
fix puppet master ip property
fix integration bugs betwwe paas manager and sdc delete funtionallity