Merged r1451 to r1454, r1458, r1460 to r1463 from trunk.

git-svn-id: http://redmine.rubyforge.org/svn/branches/0.7-stable@1474 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/time_entry.rb

@@ -29,6 +29,12 @@ class TimeEntry < ActiveRecord::Base
   validates_numericality_of :hours, :allow_nil => true
   validates_length_of :comments, :maximum => 255
 
+  def after_initialize
+    if new_record?
+      self.activity ||= Enumeration.default('ACTI')
+    end
+  end
+  
   def before_validation
     self.project = issue.project if issue && project.nil?
   end