Using relative URLs for the svn:externals

[Gert Vanthienen]

L.S.,

Since both svn.apache.org and svn.eu.apache.org are now on Subversion 
1.5, I would like to propose to change all svn:externals to use relative 
URLs instead of absolute ones. 
This will allow us to check out things from svn.eu.apache.org as well.  
Right now, the absolute URLs on the svn:externals will always get stuff 
from svn.apache.org but svn.eu.apache.org seems to be faster (at least 
from my end of the world) and has had less downtime over the last few 
months.

Wdyt?

Gert