Rename pwg/ -> plugin-development/

https://bugzilla.gnome.org/show_bug.cgi?id=773976

markdown/index.md

@@ -10,7 +10,7 @@ all about.
 
  * [Application Development Manual (Read this first)](application-development/index.md)
  * [Frequently Asked Questions](frequently-asked-questions/index.md)
- * [](pwg/index.md)
+ * [Plugin Writer's Guide](plugin-development/index.md)
  * <a href="/data/doc/gstreamer/head/gstreamer/html/">Core Reference</a>
  * <a href="/data/doc/gstreamer/head/gstreamer-libs/html/">Core Libraries Reference/a>
  * [Core Design Documentation](http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/)

sitemap.txt

@@ -97,41 +97,41 @@ index.md
 		tools/gst-inspect.md
 		tools/gst-launch.md
 		tools/ges-launch.md
-	pwg/index.md
-		pwg/introduction/index.md
-			pwg/introduction/preface.md
-			pwg/introduction/basics.md
-		pwg/building/index.md
-			pwg/building/boiler.md
-			pwg/building/pads.md
-			pwg/building/chainfn.md
-			pwg/building/eventfn.md
-			pwg/building/queryfn.md
-			pwg/building/statemanage-states.md
-			pwg/building/args.md
-			pwg/building/signals.md
-			pwg/building/testapp.md
-		pwg/advanced/index.md
-			pwg/advanced/request.md
-			pwg/advanced/scheduling.md
-			pwg/advanced/negotiation.md
-			pwg/advanced/allocation.md
-			pwg/advanced/building-types.md
-			pwg/advanced/events.md
-			pwg/advanced/clock.md
-			pwg/advanced/qos.md
-			pwg/advanced/dparams.md
-			pwg/advanced/interfaces.md
-			pwg/advanced/tagging.md
-		pwg/other/index.md
-			pwg/other/base.md
-			pwg/other/oneton.md
-			pwg/other/ntoone.md
-			pwg/other/manager.md
-		pwg/appendix/index.md
-			pwg/appendix/checklist-element.md
-			pwg/appendix/porting.md
-			pwg/appendix/porting-1_0.md
-			pwg/appendix/licensing-advisory.md
+	plugin-development/index.md
+		plugin-development/introduction/index.md
+			plugin-development/introduction/preface.md
+			plugin-development/introduction/basics.md
+		plugin-development/building/index.md
+			plugin-development/building/boiler.md
+			plugin-development/building/pads.md
+			plugin-development/building/chainfn.md
+			plugin-development/building/eventfn.md
+			plugin-development/building/queryfn.md
+			plugin-development/building/statemanage-states.md
+			plugin-development/building/args.md
+			plugin-development/building/signals.md
+			plugin-development/building/testapp.md
+		plugin-development/advanced/index.md
+			plugin-development/advanced/request.md
+			plugin-development/advanced/scheduling.md
+			plugin-development/advanced/negotiation.md
+			plugin-development/advanced/allocation.md
+			plugin-development/advanced/building-types.md
+			plugin-development/advanced/events.md
+			plugin-development/advanced/clock.md
+			plugin-development/advanced/qos.md
+			plugin-development/advanced/dparams.md
+			plugin-development/advanced/interfaces.md
+			plugin-development/advanced/tagging.md
+		plugin-development/other/index.md
+			plugin-development/other/base.md
+			plugin-development/other/oneton.md
+			plugin-development/other/ntoone.md
+			plugin-development/other/manager.md
+		plugin-development/appendix/index.md
+			plugin-development/appendix/checklist-element.md
+			plugin-development/appendix/porting.md
+			plugin-development/appendix/porting-1_0.md
+			plugin-development/appendix/licensing-advisory.md
 	splitup.md
 	rtp.md