Merged r2574, r2578, r2589, r2615, r2641, r2645, r2646 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/0.8-stable@2651 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/project.rb

@@ -60,7 +60,7 @@ class Project < ActiveRecord::Base
   validates_associated :repository, :wiki
   validates_length_of :name, :maximum => 30
   validates_length_of :homepage, :maximum => 255
-  validates_length_of :identifier, :in => 2..20
+  validates_length_of :identifier, :in => 1..20
   validates_format_of :identifier, :with => /^[a-z0-9\-]*$/
   
   before_destroy :delete_all_members