Some fixes and improvements.
- [Improvement] PHP stack installation now check and only accept valid parameters.
- [Improvement] Now we check for valid IP in blockip and whitelist commands to prevent Nginx errors.
- [Improvement] Now we check if IP already exists in blockip and whitelist commands to prevent duplicate values.
- [Improvement] Verify command now check for default/tools site and latest versions of the main packages.
- [Improvement] Timezone DB for external-sources data is now using the official PHP database.
- [Fixed] WordPress creation site failing with ask-for-data option.
- [Fixed] Error when trying to reassign a deleted default-site.
- [Fixed] Conflict with force-redirect and default site.
- [Fixed] Ignore-SSL command not working.