v3.11.0 (#211)

- PHP 7.4 support
- Improved Webp images support with Cloudflare (Issue [#95](https://github.com/WordOps/WordOps/issues/95)). Nginx will not serve webp images alternative with Cloudflare IP ranges.
- Stack upgrade for adminer
- Check acme.sh installation and setup acme.sh if needed before issuing certificate
- Add `--ufw` to `wo stack status`
- Add Nginx directive `gzip_static on;` to serve precompressed assets with Cache-Enabler or WP-Rocket. (Issue [#207](https://github.com/WordOps/WordOps/issues/207))
- Previous `--php73` & `--php73=off` flags are replaced by `--php72`, `--php73`, `--php74` to switch site's php version
- phpMyAdmin updated to v4.9.2
- Adminer updated to v4.7.5
- Replace dot and dashes by underscores in database names (Issue [#206](https://github.com/WordOps/WordOps/issues/206))
- Increased database name length to 32 characters from domain name + 8 random characters
- typo error in motd-news script (Issue [#204](https://github.com/WordOps/WordOps/issues/204))
- Install Nginx before ngxblocker
- WordOps install/update script text color
- Issue with MySQL stack on Raspbian 9/10
- Typo error  (PR [#205](https://github.com/WordOps/WordOps/pull/205))
- php version in `wo debug` (PR [#209](https://github.com/WordOps/WordOps/pull/209))
- SSL certificates expiration display with shared wildcard certificates

wo/cli/templates/wpcommon.mustache

@@ -1,4 +1,4 @@
-# WordPress COMMON SETTINGS - WO v3.9.7
+# WordPress COMMON SETTINGS - WordOps {{release}}
 # DO NOT MODIFY, ALL CHANGES WILL BE LOST AFTER AN WordOps (wo) UPDATE
 # Limit access to avoid brute force attack
 location = /wp-login.php {
@@ -12,7 +12,7 @@ location = /wp-cron.php {
     include fastcgi_params;
     fastcgi_pass {{upstream}};
 }
-# Prevent Dos attacks with xmlrpc.php
+# Prevent DoS attacks with xmlrpc.php
 location = /xmlrpc.php {
     limit_req zone=two burst=1 nodelay;
     include fastcgi_params;
@@ -41,7 +41,7 @@ location /wp-content/uploads {
     location ~ \.(png|jpe?g)$ {
         add_header Vary "Accept-Encoding";
         more_set_headers 'Access-Control-Allow-Origin : *';
-        add_header Cache-Control "public, no-transform";
+        more_set_headers  "Cache-Control : public, no-transform";
         access_log off;
         log_not_found off;
         expires max;
@@ -57,7 +57,7 @@ location /wp-content/plugins/ewww-image-optimizer/images {
     location ~ \.(png|jpe?g)$ {
         add_header Vary "Accept-Encoding";
         more_set_headers 'Access-Control-Allow-Origin : *';
-        add_header Cache-Control "public, no-transform";
+        more_set_headers  "Cache-Control : public, no-transform";
         access_log off;
         log_not_found off;
         expires max;