Im

* Fix error in ctxt process in some cases in OpenStack sites.
* Fix error launching IM with Ansible 2.4.0.

* Improve getting Public network name in OCCI conn enhancement P2
* Improve Ansible contextualization to scale more than 50 VMs
* Add Support Custom instance types in Google Conn
* Implements Delete SGs in ONE conn only in last VM
* Fix error getting contmsg output in case of use colors
* Enable to set a limit in the number of parallel ctxt processes
* Fix error in SSH module in sftp_put_dir if src dir ends with /
* Fix SSL verification error in windows
* Enable to add IPs in OCCI conn in AlterVM
* Fix error in OpenStack conn trying to assing a floating IP to VM with public IP
* Wait SSH access to VMs only in one ctxt task
* Create only one storage account per Infrastructure instead of per VM in Azure conn.
* Improve save data in VM creation process
* Fix Error creating NGS in Azure conn
* Return false if VM does not exists in updateVMInfo
* Fix error creating NSG in Azure conn if port 22 is set in outports.
* Update Ansible roles in Master node in reconfiguration.
* Fix error in Azure conn creating subnet.
* Fix error in Context. process in basic test in SSH tests.

* Fix error getting IP info in OCCI conn.
* Enable to reset the add_public_ip_count in the OCCI/OST conns.
* Improve Azure instance_type selection.
* Improve GCE instance type selection.
* Manage DNS records in EC2, Azure and GCE connectors.
* Fix error in Azure conn creating a VM with only a public net attached.

* Fix error in contextualization nodes with private keys.
* Improve OpenNebula conn with new ver. 5 functions as SGs.
* Improve error mesage in case of invalid proxy in OCCI conn.
* Fix error in Azure connector creating a VM with two nics.
* Fix error in Azure connector creating Storage Account with more than 24 chars.

* Fix errors with python3
* Fix error in some SFTP functions in SSH class.
* Change default value of REMOTE_CONF_DIR to /var/tmp.
* Enable to specify a port range in outports.
* Add functions to create VM snapshots.
* Fix error in OCCI conn setting public key.
* Improve SG management in connectors EC2 and OpenStack.
* Add support to OTC.
* In case of hybrid infrastructures some connector will not remove all resources.
* Select a random pool in case of OpenStack site in OCCI conn.
* Detach volumes before removing it in OCCI conn.
* Support OpenStack calls with VOMS proxies.

* Improve error messages in case of internal connector errors.
* Add Python 3 compatibility.
* Improve VM launch paralelism.
* Enrich the logging entries + stack trace with the infra id.
* Improve OCCI cloud_init data process.
* Add VMINFO_JSON conf var to enable the GetVMInfo function return JSON RADL.