saucy = Ubuntu 13.10 "Saucy Salamander" (saucy)
trusty = Ubuntu 14.04 "Trusty Tahr" (trusty)
utopic = Ubuntu 14.10 "Utopic Unicorn" (utopic)
+vivid = Ubuntu 15.04 "Vivid Vervet" (vivid)
[metadata]
# base url: <url>/<src_pkg-name>/<file>
saucy = nd13.10
trusty = nd14.04
utopic = nd14.10
+vivid = nd15.04