Fixed Version#issues_progress for Rails 3.1.
Fixed escaping issues in #textilizable with Rails 3.1.
Replace auto_link with link_to in email templates.
Use fixture.
Use :joins instead of :include.
Potential test failure fixed.
Round hours when reading TimeEntry attribute.
Cleanup instance variables when reloading a project.
Removed useless option.
Use subclasses method instead of class variable.
