Release v3.8.0

• Refactor the project to use absolute imports to make the installation easier
  (with a setup.py file). This also was a first step to make our codebase
  compatible with python 3.
• Change the commands used to run faraday. ./faraday-server.py,
  ./manage.py, ./faraday.py and bin/flugin are replaced for faraday-server, faraday-manage,
  faraday-client and fplugin respectively
• Changed suggested installation method. Now we provide binary executables with all python dependencies
  embedded into them
• Add admin panel to the Web UI to manage custom fields
• Fix slow host list when creating vulns in a workspace with many hosts
• Usability improvements in status report: change the way vulns are selected and confirmed
• Improve workspace workspace creation from the Web UI
• Fix attachment api when file was not found in .faraday/storage
• Fix visualization of the fields Policy Violations and References.
• Add a setting in server.ini to display the Vulnerability Cost widget of the Dashboard
• Fix status report resize when the browser console closes.
• Fix severity dropdown when creating vulnerability templates
• Update OS icons in the Web UI.
• Fix bug when using custom fields, we must use the field_name instead of the display_name
• Prevent creation of custom fields with the same name
• Add custom fields to vuln templates.
• Fix user's menu visibily when vuln detail is open
• Remove "show all" option in the status report pagination
• The activity feed widget of the dashboard now displays the hostname of the
  machine that runned each command
• Add loading spinner in hosts report.
• Fix "invalid dsn" bug in sql-shell
• Fix hostnames bug in Nikto and Core Impact plugins
• Change Openvas plugin: Low and Debug threats are not taken as vulnerabilities.
• Add fplugin command to close vulns created after a certain time
• Add list-plugins command to faraday-manage to see all available plugins
• Fix a logging error in PluginBase class
• Fix an error when using NexposePlugin from command line.
• Add CSV parser to Dnsmap Plugin
• Fix bug when creating web vulnerabilities in dirb plugin
• Change Nexpose Severity Mappings.