Domain aliases with same mount point

[greg]

Here is my patch ! (based upon the nightly build version 20070717)

Some modifications in the web part :

• I remove the "same mountpoint" check in the reseller GUI
• I remove the "same mountpoint" check in the client GUI
• I allow the mountpoint to be only "/" (same as the main domain)
  

And some others in the engine part :

• When adding a domain alias, I skip the creation of the web root files if the mount point is already in use
• When removing a domain alias, I skip the deletion of the web root files if the mount point is shared and still in use
  

I think it's an usefull modification, and if I forgot nothing, it's not very difficult to integrate...
So I hope this enhancement can be include in the 1.0.0 version

PS: the ticket is here http://www.isp-control.net/ispcp/ticket/483