Added length validation for IssueCategory name.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@756 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue_category.rb

@@ -22,6 +22,7 @@ class IssueCategory < ActiveRecord::Base
   
   validates_presence_of :name
   validates_uniqueness_of :name, :scope => [:project_id]
+  validates_length_of :name, :maximum => 30
   
   alias :destroy_without_reassign :destroy