Update license types

- replace cc0: No Rights Reserved with pd: Public Domain
- prefix the Creative Commons License names with `cc-`
- add gfdl: GNU Free Documentation License

fixtures/program/licensetype.json

@@ -3,15 +3,15 @@
     "model": "program.licensetype",
     "pk": 1,
     "fields": {
-      "name": "cc0",
-      "type": "No Rights Reserved"
+      "name": "pd",
+      "type": "Public Domain"
     }
   },
   {
     "model": "program.licensetype",
     "pk": 2,
     "fields": {
-      "name": "by",
+      "name": "cc-by",
       "type": "Creative Commons Attribution"
     }
   },
@@ -19,7 +19,7 @@
     "model": "program.licensetype",
     "pk": 3,
     "fields": {
-      "name": "by-sa",
+      "name": "cc-by-sa",
       "type": "Creative Commons Attribution-ShareAlike"
     }
   },
@@ -27,7 +27,7 @@
     "model": "program.licensetype",
     "pk": 4,
     "fields": {
-      "name": "by-nc",
+      "name": "cc-by-nc",
       "type": "Creative Commons Attribution-NonCommercial"
     }
   },
@@ -35,7 +35,7 @@
     "model": "program.licensetype",
     "pk": 5,
     "fields": {
-      "name": "by-nc-sa",
+      "name": "cc-by-nc-sa",
       "type": "Creative Commons Attribution-NonCommercial-ShareAlike"
     }
   },
@@ -43,7 +43,7 @@
     "model": "program.licensetype",
     "pk": 6,
     "fields": {
-      "name": "by-nd",
+      "name": "cc-by-nd",
       "type": "Creative Commons Attribution-NoDerivatives"
     }
   },
@@ -51,8 +51,16 @@
     "model": "program.licensetype",
     "pk": 7,
     "fields": {
-      "name": "by-nc-nd",
+      "name": "cc-by-nc-nd",
       "type": "Creative Commons Attribution-NonCommercial-NoDerivatives"
     }
+  },
+  {
+    "model": "program.licensetype",
+    "pk": 8,
+    "fields": {
+      "name": "gfdl",
+      "type": "GNU Free Documentation License"
+    }
   }
 ]
\ No newline at end of file

fixtures/program/linktype.json

@@ -20,7 +20,7 @@
     "pk": 3,
     "fields": {
       "name": "cba-podcast",
-      "type": "CBA podcast"
+      "type": "Cultural Broadcasting Archive Podcast"
     }
   },
   {
@@ -28,7 +28,7 @@
     "pk": 4,
     "fields": {
       "name": "cba-post",
-      "type": "CBA post"
+      "type": "Cultural Broadcasting Archive Post"
     }
   },
   {