Fixed broken links in tasks-module. Translated some views into german.

app/views/tasks/_list.haml

@@ -1,12 +1,13 @@
 %table				
   %tr
-    %th= _('Due date')
-    %th= _('Subject')
+    %th Fälligkeit
+    %th Betreff
     %th{:colspan => '2'}
-      = _('Who will make it?') 
-      %small= "(" + _("How many are still required?") + ")"
+      Wer machts?
+      %small (Wie viele werden noch benötigt?)
   - for task in @tasks
-    %tr{:class => cycle('even','odd', :name => "tasks") + (task.done ? " done" : "") }
+    - done = task.done ? " done" : ""
+    %tr{:class => cycle('even','odd', :name => "tasks") + done }
       %td= format_date(task.due_date) unless task.due_date.nil?
       %td= link_to task.name, :controller => "tasks", :action => "show", :id => task
       %td
@@ -22,11 +23,11 @@
         = highlighted_required_users task
       %td
         - unless task.is_accepted?(@current_user)
-          %span{:style => "float:left"}= button_to _('Accept task'), :controller => "tasks", :action => "accept", :id => task
-          = button_to _("Reject task"), :controller => "tasks", :action => "reject", :id => task if task.is_assigned?(@current_user)
+          %span{:style => "float:left"}= button_to "Aufgabe übernehmen", :controller => "tasks", :action => "accept", :id => task
+          = button_to "Aufgabe ablehnen", :controller => "tasks", :action => "reject", :id => task if task.is_assigned?(@current_user)
         - else
           - form_for :task, :url => {:action => "update_status", :id => task} do |f|
-            = _("Done") + "?"
-            = f.check_box :done, {:onchange => "submit()"}
-        = _("Done") if task.done
+            Erledigt?
+            = f.check_box :done, {:onchange => "submit()", :title => "Die Aufgabe wandert in das Archiv"}
+        = "Erledigt" if task.done
   - reset_cycle("tasks")