smaller tabs in no_image and 32x32, admin has under 1024 all tabs in 1 row and in no_image some space free for 2 more tabs

fix bug FS#1200 - id elents should be unique. have changed side nav template, this needs to change too.

Added new theme. You now can change between 64px size icons, 32px size icons (the default-value) and no icons

Added a new module called "domain". With this module you can manage all domains (web + mail). Per default this module is not active. To activate it, you have to change the System Interface Config -> domains -> use the domain module. You also have to activate the domain-module for the admin (and for every client if you want). Important: you can not use this module if you have reseller!

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