Updating configuration (#197)

#### Added

- [ACME] Display warning about sudo usage when issuing certificate with DNS API validation (require `sudo -E`)

#### Changed

- [ACME] Resolve domain IP over HTTPS with Cloudflare DNS Resolver
- [CORE] Cement Framework updated to v2.10.2
- [SITE] database name = 0 to 16 characters from the site name + 4 randomly generated character
- [SITE] database user = 0 to 12 characters from the site name + 4 randomy generated character
- [STACK] Improve sysctl tweak deployment

#### Fixed

- [SITE] https redirection missing on subdomains sites
- Issues with digitalocean mariadb repository
- Cement Framework output handler issues
- [CLEAN] check if Nginx is installed before purging fastcgi or opcache

wo/core/services.py

@@ -87,11 +87,11 @@ class WOService():
                 output, error_output = sub.communicate()
                 if 'emerg' not in str(error_output):
                     Log.valide(self, "Testing Nginx configuration ")
-                    Log.wait(self, "Restarting Nginx            ")
+                    Log.wait(self, "Restarting Nginx")
                     service_cmd = ('service {0} restart'.format(service_name))
                     retcode = subprocess.getstatusoutput(service_cmd)
                     if retcode[0] == 0:
-                        Log.valide(self, "Restarting Nginx            ")
+                        Log.valide(self, "Restarting Nginx")
                         return True
                 else:
                     Log.failed(self, "Testing Nginx configuration ")