removed unnecessary bak-files

Completly same functionality as VHost-Subdomain, not to disable if already existing vhostalias-somains in system.

- nginx pm settings: values were limited to 3 figures (so max. value was 999), increased this to 6 figures.

- Added fields to client, reseller and website to show when a record was added and by which user

- nginx: added {DOCROOT} and {FASTCGIPASS} placeholders to directive snippets and nginx Directives fields.

http://www.howtoforge.com/forums/showthread.php?t=62691

Reverted SVN trunk back to revision 3938 to remove changes in default theme an a replacement of the ispconfig logo.

- Added backup size to web backups

Implemented:  FS#2422 - Use domain module when creating subdomains 
Bugfix: datalog was used in the wrong way on editing aliasdomains
Bugfix: missing datalog update for parent domain on editing subdomains

- New feature: you can now add directive snippets for Apache, nginx, and PHP under System > Directive Snippets. These snippets are then available on the Options tab of a web site where they can be easily added to the respective textarea by simply clicking the name of the directive snippet.

Fixed: password match function blocked tabs incorrectly
Fixed: set focus on username input field threw an error if this field did not exist on a page

Fixed: Database creation on APS