Adds API response to /trackers to get the list of all available trackers (#7181).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@7877 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/trackers/index.api.rsb

@@ -0,0 +1,8 @@
+api.array :trackers do
+  @trackers.each do |tracker|
+    api.tracker do
+      api.id tracker.id
+      api.name tracker.name
+    end
+  end
+end