New MailScanner Front-End (MSFE) v7.10

Changes:

MailControl: Added REGEXP search condition
MailControl: Fixed issue with MySQL errors not being shown in the browser
MailControl: The number of search conditions allowed is now configurable in the MailControl Settings
MailControl: Ensure spaces are respected when showing the Subject field
Added link from Front-End settings page to MailControl Settings
MailControl: Added SA and MS lint tests to MailControl menu
MailControl: Added sortable numeric fields to table
MailControl: Added new database drivers in addition to the asynchronous MailWatch driver for MySQL. We have add a synchronous MailControl driver for MySQL and a synchronous driver for SQLite. Details can be found in the MailControl Settings. We will be keeping all 3 options available with the ability to switch between them
MailControl: Added Database Tools to the MailControl Settings that provide: Copy MySQL to SQLite; copy SQLite to MySQL; MySQL backup; SQLite backup; Fix common database problems
MailControl: Reordered the More Options menu
MailControl: Added new option to display Client IP column in main table with sort. This option is only available when using a MySQL driver
MailControl: Added Client IP to search form