Merge pull request #53 from jasondavis/master

New login page
Fixes issue where module category drop-down will display even if the user does not have access to the modules in that category, what happens is that a category link appears on the drop-down however the drop-down list is empty. This fixes bug #544.
Fixes bug #545 where the zpanel_postfix database mailboxes table does not update the 'modified' time when a mailbox is updated in ZPanel.
Updated delete icon in the FAQ's module to make them a more general style icon as the current 'bubble-wrap' style icon looks a little strange with the new default theme.
Fixed issue where PHP was complaining about an undefined command line argument, fixes bug #556 (http://bugs.zpanelcp.com/view.php?id=556)
Fixes issue where the 'Send welcome email' string did not parse correctly using the new template parser. Issue was due to the use of '?' which was not required anyway so I have removed it, in future will add support for '?' in the translation string.
Updating favicons files for favicon support expansion
Expanding favicon support
Merge pull request #55 from stokes84/master

Favicon Updates
Fixes postfix mysql vulnerability on any outstanding installations.
Fixes postfix mysql vulnerability on any outstanding installations.
Fixes postfix mysql vulnerability on any outstanding installations.
Fixes postfix mysql vulnerability on any outstanding installations.
Fixes postfix mysql vulnerability on any outstanding installations.
Save the new password to the standard file.
Testing password replaced with actual password variable.
Fixes missing opening tag square bracket which was missed out on the recent media icon updates.
Adds automatic detection of HTTP/HTTPS protocol used and will dynacmically build the URL thus ensuring that the Gravatar URL for the avatar is compatible with the current session as this previously caused browser SSL warnings when ZPanel was being served over an SSL connection (as the browser would have complained about not all content being encrypted etc.)
Solves postfix default mysql credentials issue for anyone who hasn't manually applied a fix.