Merge pull request #1 from fiware/release/0.1.0

SVN export https://barricada.hi.inet/repositorio/boi/europ-iaas/app-conf...
Merge pull request #2 from fiware/release/0.1.1

Release/0.1.1
Merge pull request #3 from fiware/release/0.1.2

Release/0.1.2
Merge pull request #4 from fiware/release/0.1.3

SVN export https://barricada.hi.inet/repositorio/boi/europ-iaas/app-conf...
Merge branch 'release/2.0.0'
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
Merge branch 'release/2.1.0'
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
aadd travis configuration
fix bug