Issue 4962: Web: home page: add example image, reduce news to headlines

The example image is the excerpt from Bach BWV 861 from the essay.
Anchor links are used to link to specific examples on the examples
page.  The news entries on the home page are reduced to just a list
of headlines that link to specific entries on the 'Old News' page
(under 'Community').  And that page is renamed to just 'News'.

3 files changed, 105 insertions, 0 deletions

diff --git a/Documentation/pictures/bwv861-lilypond-large.ly b/Documentation/pictures/bwv861-lilypond-large.ly
new file mode 100644
index 0000000000..b14f0930e7
--- /dev/null
+++ b/Documentation/pictures/bwv861-lilypond-large.ly
@@ -0,0 +1,105 @@
+\version "2.19.48"
+
+% Engrave to png with these options to create
+% the large version of image for home page:
+% -dno-point-and-click --png -dresolution=300
+
+% The small version you see on the home page
+% itself is simply the image from the essay manual,
+% downloaded from the website version of the
+% essay manual.
+
+\layout {
+  line-width = 15.9 \cm
+}
+
+\paper {
+  indent = 0
+  paper-height = 8 \cm
+  paper-width = 18 \cm
+}
+
+\header {
+  tagline = ##f
+}
+
+#(set-global-staff-size 14.3)
+
+
+global = { \key g \minor }
+
+partI = \relative {
+  \voiceOne
+  fis'8 d' ees g, fis4 g
+  r8 a16 bes c8 bes16 a d8 r r4
+  r2 r8 d16 ees f8 ees16 d
+  ees4 ~ 16 d c bes a4 r8 ees'16 d
+  c8 d16 ees d8 e16 fis g8 fis16 g a4 ~
+  8 d, g f ees d c bes
+  a2 g \fermata \bar "|."
+}
+
+partII = \relative {
+  \voiceTwo
+  d'4 r4 r8 d'16 c bes8 c16 d
+  ees8 d c ees a, r r4
+  r8 fis16 g a8 g16 fis g2 ~
+  2 r8 d' ees g,
+  fis4 g r8 a16 bes c8 bes16 a
+  bes4. <g b>8 <a c> r <d, g> r
+  <ees g>4 <d fis> d2
+}
+
+partIII = \relative {
+  \voiceOne
+  r2 r8 d' ees g, fis4 g r8 a16 bes c8 bes16 a
+  bes2 ~ 8 b16 a g8 a16 b
+  c4 r r2
+  R1
+  r8 d ees g, fis4 g
+  r8 a16 bes c8 bes16 a b2
+}
+
+partIV = \relative {
+  \voiceTwo
+  d4 r r2
+  r8 d ees g, fis4 a
+  d,8 d'16 c bes8 c16 d ees2 ~
+  8 ees16 d c8 d16 ees fis,8 a16 g fis8 g16 a
+  d,8 d'16 c bes8 c16 d ees8 c a fis'
+  g f ees d c bes a g
+  c a d d, g2 \fermata
+}
+
+\score {
+  <<
+    % \set Score.barNumberVisibility = #all-bar-numbers-visible
+    % required in 2.13
+    \set Score.currentBarNumber = #28
+    \bar ""
+    \new PianoStaff <<
+      \new Staff = "RH" <<
+        \global
+        \new Voice = "voiceI" { \partI }
+        \new Voice = "voiceII" { \partII }
+      >>
+
+      \new Staff = "LH" <<
+        \clef "bass"
+        \global
+        \new Voice = "voiceIII" { \partIII }
+        \new Voice = "voiceIV" { \partIV }
+      >>
+    >>
+  >>
+  \layout {
+    \context {
+      \Staff
+      \remove "Time_signature_engraver"
+    }
+    \context {
+      \PianoStaff
+      \override StaffGrouper.staff-staff-spacing.padding = #1
+    }
+  }
+}
diff --git a/Documentation/pictures/bwv861-lilypond-large.png b/Documentation/pictures/bwv861-lilypond-large.png
new file mode 100644
index 0000000000..099fe3d31c
--- /dev/null
+++ b/Documentation/pictures/bwv861-lilypond-large.png
diff --git a/Documentation/pictures/bwv861-lilypond.png b/Documentation/pictures/bwv861-lilypond.png
new file mode 100644
index 0000000000..b3a7e31a40
--- /dev/null
+++ b/Documentation/pictures/bwv861-lilypond.png