* added an helper and moved the rendering code to a shared partial (used by project calendar and my calendar)
* first day of week can now be set in lang files (general_first_day_of_week)
git-svn-id: http://redmine.rubyforge.org/svn/trunk@815 e93f8b46-1217-0410-a6f0-8f06a7374b81
Jean-Philippe Lang