eol: setup the repo.ui in reposetup()

This fixes problems some have reported using the eol extension
together with TortoiseHg.  It ensures the ui associated with the
repository has the preupdate.eol hook configured.

hgext/eol.py

@@ -145,6 +145,7 b' def extsetup(ui):'
 
 
 def reposetup(ui, repo):
+    uisetup(repo.ui)
     #print "reposetup for", repo.root
 
     if not repo.local():