few fixes

app/models/project.rb

@@ -29,7 +29,7 @@ class Project < ActiveRecord::Base
             :uniqueness => true,
             :format => { :with => /^[a-zA-Z0-9_\-]*$/,
                          :message => "only letters, digits & '_' '-' allowed"  },
-            :length   => { :within => 3..16 }
+            :length   => { :within => 3..255 }
 
   validates :owner,
             :presence => true

app/views/projects/_form.html.haml

@@ -24,7 +24,7 @@
         %td 
           .left= f.label :code
           %cite.right http://yourserver/
-        %td= f.text_field :code, :placeholder => "example (3..12 symbols only)"
+        %td= f.text_field :code, :placeholder => "example"
     .field
       = f.label :description
       %br/