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/utils/test.py

@@ -1,9 +1,9 @@
 """Testing utilities for WordOps"""
-from cement.utils.test import *
+from cement.utils import test
 from wo.cli.main import WOTestApp
 
 
-class WOTestCase(CementTestCase):
+class WOTestCase(test.CementTestCase):
     app_class = WOTestApp
 
     def setUp(self):