emacs: Add more functions to clean up text/plain parts

Add:
- notmuch-wash-wrap-long-lines: Wrap lines longer than the width of
  the current window whilst maintaining any citation prefix.
- notmuch-wash-tidy-citations: Tidy up citations by:
  - compress repeated otherwise blank citation lines,
  - remove otherwise blank citation lines at the head and tail of a
    citation and remove blank lines between attribution statements and
    the citation,
- notmuch-wash-compress-blanks: Compress repeated blank lines and
  remove leading and trailing blank lines.

Enable `notmuch-wash-tidy-citations' and
`notmuch-wash-compress-blanks' by default by adding them to
`notmuch-show-insert-text/plain-hook'. `notmuch-wash-wrap-long-lines'
is not enabled by default.

If `notmuch-wash-wrap-long-lines' is enabled, word wrapping of the
buffer leads to an unappealing display of text, so provide a function
to disable it and add it to the list of `notmuch-show-mode' hook
functions.

1 files changed, 2 insertions, 1 deletions

diff --git a/emacs/Makefile.local b/emacs/Makefile.local
index 7537c3d5..ce37ca26 100644
--- a/emacs/Makefile.local
+++ b/emacs/Makefile.local
@@ -9,7 +9,8 @@ emacs_sources := \
 	$(dir)/notmuch-wash.el \
 	$(dir)/notmuch-hello.el \
 	$(dir)/notmuch-mua.el \
-	$(dir)/notmuch-address.el
+	$(dir)/notmuch-address.el \
+	$(dir)/coolj.el
 
 emacs_images := \
 	$(dir)/notmuch-logo.png