docs: Move guestfs-release-notes(1) to docs/ subdirectory.

I have also removed the text equivalent of this file.  Originally I
added this because it was thought good to have the release notes
available in a format that doesn't require any special tools to read.
But:

 - POD files are basically text.

 - Debian tooling generates the text file in a slightly different way
   from Fedora tooling, resulting in git marking the file as being
   updated when it isn't really.

 - github can format and display POD files.

.gitignore

@@ -133,10 +133,12 @@ Makefile.in
 /docs/guestfs-faq.1
 /docs/guestfs-performance.1
 /docs/guestfs-recipes.1
+/docs/guestfs-release-notes.1
 /docs/guestfs-testing.1
 /docs/stamp-guestfs-faq.pod
 /docs/stamp-guestfs-performance.pod
 /docs/stamp-guestfs-recipes.pod
+/docs/stamp-guestfs-release-notes.pod
 /docs/stamp-guestfs-testing.pod
 /edit/stamp-virt-*.pod
 /edit/virt-edit
@@ -217,7 +219,6 @@ Makefile.in
 /golang/examples/guestfs-golang.3
 /golang/examples/stamp-guestfs-golang.pod
 /golang/pkg
-/guestfs-release-notes.1
 /guestfsd-in-wine.log
 /haskell/Bindtests
 /haskell/Bindtests.hs
@@ -500,7 +501,6 @@ Makefile.in
 /src/structs-copy.c
 /src/structs-free.c
 /src/test-utils
-/stamp-guestfs-release-notes.pod
 /stamp-h1
 /sysprep/.depend
 /sysprep/stamp-script1.sh

Makefile.am

@@ -194,8 +194,6 @@ EXTRA_DIST = \
 	contrib/visualize-alignment/README \
 	contrib/visualize-alignment/tracetops.ml \
 	contrib/windows-icons.pl \
-	guestfs-release-notes.pod \
-	guestfs-release-notes.txt \
 	html/draft.png \
 	html/draft.svg \
 	html/pod.css \
@@ -379,25 +377,6 @@ install:
 installcheck-local: installcheck.sh
 	$(builddir)/installcheck.sh
 
-# Manual pages in top level directory.
-
-man_MANS = \
-	guestfs-release-notes.1
-noinst_DATA = \
-	$(top_builddir)/html/guestfs-release-notes.1.html
-
-guestfs-release-notes.1 guestfs-release-notes.txt $(top_builddir)/html/guestfs-release-notes.1.html: stamp-guestfs-release-notes.pod
-
-stamp-guestfs-release-notes.pod: guestfs-release-notes.pod
-	$(PODWRAPPER) \
-	  --section 1 \
-	  --man guestfs-release-notes.1 \
-	  --text guestfs-release-notes.txt \
-	  --html $(top_builddir)/html/guestfs-release-notes.1.html \
-	  --license GPLv2+ \
-	  $<
-	touch $@
-
 # NB. podwrapper is an internal tool, so the man page mustn't be installed.
 noinst_MANS = podwrapper.1
 podwrapper.1: podwrapper.pl
@@ -416,7 +395,6 @@ CLEANFILES = \
 	pod2htm?.tmp \
 	podwrapper.1 \
 	qemu-wrapper.sh \
-	stamp-guestfs-release-notes.pod \
 	tmp/disk* \
 	tmp/run-* \
 	tmp/valgrind-*.log

docs/Makefile.am

@@ -21,6 +21,7 @@ EXTRA_DIST = \
 	guestfs-faq.pod \
 	guestfs-performance.pod \
 	guestfs-recipes.pod \
+	guestfs-release-notes.pod \
 	guestfs-testing.pod \
 	README
 
@@ -28,17 +29,20 @@ CLEANFILES = \
 	stamp-guestfs-faq.pod \
 	stamp-guestfs-performance.pod \
 	stamp-guestfs-recipes.pod \
+	stamp-guestfs-release-notes.pod \
 	stamp-guestfs-testing.pod
 
 man_MANS = \
 	guestfs-faq.1 \
 	guestfs-performance.1 \
 	guestfs-recipes.1 \
+	guestfs-release-notes.1 \
 	guestfs-testing.1
 noinst_DATA = \
 	$(top_builddir)/html/guestfs-faq.1.html \
 	$(top_builddir)/html/guestfs-performance.1.html \
 	$(top_builddir)/html/guestfs-recipes.1.html \
+	$(top_builddir)/html/guestfs-release-notes.1.html \
 	$(top_builddir)/html/guestfs-testing.1.html
 
 guestfs-faq.1 $(top_builddir)/html/guestfs-faq.1.html: stamp-guestfs-faq.pod
@@ -74,6 +78,17 @@ stamp-guestfs-recipes.pod: guestfs-recipes.pod
 	  $<
 	touch $@
 
+guestfs-release-notes.1 guestfs-release-notes.txt $(top_builddir)/html/guestfs-release-notes.1.html: stamp-guestfs-release-notes.pod
+
+stamp-guestfs-release-notes.pod: guestfs-release-notes.pod
+	$(PODWRAPPER) \
+	  --section 1 \
+	  --man guestfs-release-notes.1 \
+	  --html $(top_builddir)/html/guestfs-release-notes.1.html \
+	  --license GPLv2+ \
+	  $<
+	touch $@
+
 guestfs-testing.1 $(top_builddir)/html/guestfs-testing.1.html: stamp-guestfs-testing.pod
 
 stamp-guestfs-testing.pod: guestfs-testing.pod

po-docs/podfiles

@@ -16,6 +16,7 @@
 ../docs/guestfs-faq.pod
 ../docs/guestfs-performance.pod
 ../docs/guestfs-recipes.pod
+../docs/guestfs-release-notes.pod
 ../docs/guestfs-testing.pod
 ../edit/virt-edit.pod
 ../erlang/examples/guestfs-erlang.pod
@@ -34,7 +35,6 @@
 ../fuse/guestunmount.pod
 ../get-kernel/virt-get-kernel.pod
 ../golang/examples/guestfs-golang.pod
-../guestfs-release-notes.pod
 ../inspector/virt-inspector.pod
 ../java/examples/guestfs-java.pod
 ../lua/examples/guestfs-lua.pod