Some improvements and fixes.
- [Fixed] Purge-Server-All option fails trying to remove some databases.
- [Fixed] Tools-Port changed in some cases when Webinoly is uninstalled and reinstalled.
- [Improved] Modify php-ver now detects when the new selected version its the same as currently installed version.
- [Improved] Proxy-Site arguments are now (better) validated before create the site.
- [Improved] Some outputed messages and typos.