add hint for removeing .svn folders in docu

[Haeber]

In the last week we get three posts and bugreports about .svn folders which block the domain creation/modification. All reporters copied there ispcp directly from trunk.

So there should be more and stronger information about coping from trunk and deleting .svn folders in the docs, esspecially at the following two sites:

• http://www.isp-control.net/ispcp/wiki/releases_svn
• http://www.isp-control.net/documentation/start/upgrade/nightly
  

Another and more useful solution would be a modification for the install script, so it does not copy .svn folders. So exclude .svn folders from the copy command.

Best Regards
Haeber