Adds support for multiple repositories per project (#779).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8650 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/fixtures/repositories.yml

@@ -7,6 +7,7 @@ repositories_001:
   password: ""
   login: ""
   type: Subversion
+  is_default: true
 repositories_002: 
   project_id: 2
   url: svn://localhost/test
@@ -15,3 +16,4 @@ repositories_002:
   password: ""
   login: ""
   type: Subversion
+  is_default: true