added simple svn statistics graphs, rendered using SVG::Graph

git-svn-id: http://redmine.rubyforge.org/svn/trunk@380 e93f8b46-1217-0410-a6f0-8f06a7374b81

lang/de.yml

@@ -344,6 +344,10 @@ label_spent_time: Spent time
 label_f_hour: %.2f hour
 label_f_hour_plural: %.2f hours
 label_time_tracking: Time tracking
+label_change_plural: Changes
+label_statistics: Statistics
+label_commits_per_month: Commits per month
+label_commits_per_author: Commits per author
 
 button_login: Einloggen
 button_submit: OK