doc: link between client and server doc and to the wayland book

And insert "client" or "server" into the PROJECT_NAME to know which one we
have.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

doc/doxygen/Makefile.am

@@ -68,6 +68,7 @@ xml/%/index.xml: $(top_srcdir)/src/scanner.c $(scanned_src_files_%) wayland.doxy
 
 html/%/index.html: $(scanned_src_files_%) wayland.doxygen $(diagrams) $(diagram_maps) | html/%
 	$(AM_V_GEN)(cat wayland.doxygen; \
+          echo "PROJECT_NAME=\"Wayland $* API\""; \
           echo "GENERATE_HTML=YES"; \
           echo "HTML_OUTPUT=html/$*"; \
           echo "INPUT= $(scanned_src_files_$*) $(extra_doxygen_$*)"; \

doc/doxygen/mainpage.dox

@@ -2,6 +2,15 @@
  * @mainpage
  * Wayland protocol API documentation.
  *
+ * This documentation is available for the Server- and the Client-side APIs.
+ *
+ * - <a href="../Server/index.html">Server-side API</a>
+ * - <a href="../Client/index.html">Client-side API</a>
+ *
+ * Further documentation about the architecture and principles of Wayland is
+ * available in the
+ * <a href="https://wayland.freedesktop.org/docs/html">Wayland Book</a>
+ *
  * @section ifaces Interfaces
  * For the list of available interfaces, please see the
  * <a href="modules.html">modules</a> list.