added GFDL license to license list

mediagoblin_libreplanet/__init__.py

@@ -36,12 +36,17 @@ cc_by_sa_4 = License("CC BY-SA 4.0",
 cc_by_nd_4 = License("CC BY-ND 4.0",
                      "Creative Commons Attribution-NoDerivatives 4.0 International",
                      "https://creativecommons.org/licenses/by-nd/4.0/")
+gfdl_1_3 = License("GFDL 1.3",
+                     "GNU Free Documentation License 1.3",
+                     "https://www.gnu.org/licenses/fdl-1.3.en.html")
 SORTED_LICENSES.insert(1, cc_by_4)
 SORTED_LICENSES.insert(2, cc_by_sa_4)
 SORTED_LICENSES.insert(3, cc_by_nd_4)
+SORTED_LICENSES.insert(4, gfdl_1_3)
 SUPPORTED_LICENSES[cc_by_4.uri] = cc_by_4
 SUPPORTED_LICENSES[cc_by_sa_4.uri] = cc_by_sa_4
 SUPPORTED_LICENSES[cc_by_nd_4.uri] = cc_by_nd_4
+SUPPORTED_LICENSES[gfdl_1_3.uri] = gfdl_1_3
 
 PLUGIN_DIR = os.path.dirname(__file__)