Update the Emacs manual with recent project.el changes

* doc/emacs/maintaining.texi (Projects): Add a menu.
(Project File Commands): New subsection describing project file
commands (moved here from 'Working with Projects').  Describe the new
commands 'project-dired' and 'project-eshell'.
(Switching Projects): New subsection.

* etc/NEWS: Mention project.el changes.

1 files changed, 13 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index e97755a4541..7424507e82f 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -389,6 +389,19 @@ information, see the related entry about 'shr-browse-url' above.
 
 *** New user option 'project-vc-merge-submodules'.
 
+*** Previously used project directories are now are now completed by
+all commands that prompt for a project directory.
+
++++
+*** New commands 'project-dired' and 'project-eshell'.
+These commands run Dired and Eshell in a project's root directory,
+respectively.
+
++++
+*** New command 'project-switch-project'.
+This command lets you "switch" to another project by running a project
+command chosen from a dispatch menu.
+
 ** json.el
 
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