bump version numbers and add a news item for the 2.9.1 release

ChangeLog

+Changes between v2.9.0 and v2.9.1:
+----------------------------------
+
+Benno Schulenberg (20):
+      build: fix compilation with --disable-browser --disable-tabcomp
+      bump version numbers and add a news item for the 2.9.1 release
+      files: always update the stat info when the entire file is written
+      files: save the marked region only when we've prompted for a file name
+      gnulib: update to its current upstream state
+      history: create the path '~/.local/share/' when it is needed
+      history: make nano's state directory accessible for the user only
+      history: save the positions file also when a record was deleted
+      input: make the macro key discoverable by giving feedback when undefined
+      linting: switch the mark off when the linter starts
+      selecting: do not cancel the softmark when the cursor is not moved
+      selecting: let a justification cancel a softmark
+      syntax: adjust the magic strings for the changes since file-5.10
+      tweaks: adjust indentation after previous change
+      tweaks: elide the 'mark_set' boolean -- the 'mark' pointer is enough
+      tweaks: rename, rewrap, and reshuffle some stuff, and frob some comments
+      tweaks: reshuffle a couple of lines, and frob a comment or two
+      tweaks: reshuffle a couple of lines, to put similar things together
+      undo: clear the Modified state when the very first edit is undone
+      undo: discarding the stack does not always lose information
+
+
 Changes between v2.8.7 and v2.9.0:
 ----------------------------------
 

NEWS

+2017.11.27 - GNU nano 2.9.1 "Damyatta" fixes a bug where, when the mark
+		is on, ^S would overwrite the file with just the marked
+		region.  This release further clears the "Modified" flag
+		when all edits are undone, adds or updates some magic
+		strings, and does not forget when the cursor was last
+		at line 1, column 1.
+
 2017.11.18 - GNU nano 2.9.0 "Eta" introduces the ability to record and
 		replay keystrokes (M-: to start and stop recording, M-;
 		to play the macro back), makes ^Q and ^S do something

configure.ac

@@ -16,7 +16,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see http://www.gnu.org/licenses/.
 
-AC_INIT([GNU nano], [2.9.0], [nano-devel@gnu.org], [nano])
+AC_INIT([GNU nano], [2.9.1], [nano-devel@gnu.org], [nano])
 AC_CONFIG_SRCDIR([src/nano.c])
 AC_CANONICAL_HOST
 AM_INIT_AUTOMAKE([1.14])

doc/faq.html

@@ -83,7 +83,7 @@
 <h2><a name="1.3"></a>1.3. Why the name change from TIP?</h2>
 <blockquote><p>On January 10, 2000, TIP was officially renamed to nano because of a namespace conflict with another program called 'tip'. The original 'tip' program &quot;establishes a full duplex terminal connection to a remote host&quot;, and was included with many older Unix systems (and newer ones like Solaris). The conflict was not noticed at first because there is no 'tip' utility included with most GNU/Linux distributions (where nano was developed).</p></blockquote>
 <h2><a name="1.4"></a>1.4. What is the current version of nano?</h2>
-<blockquote><p>The current version of nano <i>should</i> be <b>2.9.0</b>.  Of course, you should always check the <a href="https://nano-editor.org/">nano homepage</a> to see what the latest and greatest version is.</p></blockquote>
+<blockquote><p>The current version of nano <i>should</i> be <b>2.9.1</b>.  Of course, you should always check the <a href="https://nano-editor.org/">nano homepage</a> to see what the latest and greatest version is.</p></blockquote>
 <h2><a name="1.5"></a>1.5. I want to read the man page without having to download the program!</h2>
 <blockquote><p>Jeez, demanding, aren't we? Okay, look <a href="https://nano-editor.org/dist/latest/nano.1.html">here</a>.</p></blockquote>
 <hr width="100%">

doc/nano.1

@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANO 1 "version 2.9.0" "November 2017"
+.TH NANO 1 "version 2.9.1" "November 2017"
 
 .SH NAME
 nano \- Nano's ANOther editor, an enhanced free Pico clone

doc/nano.texi

@@ -8,7 +8,7 @@
 
 @smallbook
 @set EDITION 0.5
-@set VERSION 2.9.0
+@set VERSION 2.9.1
 @set UPDATED November 2017
 
 @dircategory Editors
@@ -23,7 +23,7 @@
 @titlepage
 @title GNU @command{nano}
 @subtitle a small and friendly text editor
-@subtitle version 2.9.0
+@subtitle version 2.9.1
 
 @author Chris Allegretta
 @page
@@ -63,7 +63,7 @@ e-mail: @email{chrisa@@asty.org}@*
 @node Top
 @top
 
-This manual documents the GNU @command{nano} editor, version 2.9.0.
+This manual documents the GNU @command{nano} editor, version 2.9.1.
 
 @menu
 * Introduction::

doc/nanorc.5

@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANORC 5 "version 2.9.0" "November 2017"
+.TH NANORC 5 "version 2.9.1" "November 2017"
 
 .SH NAME
 nanorc \- GNU nano's configuration file

doc/rnano.1

@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH RNANO 1 "version 2.9.0" "November 2017"
+.TH RNANO 1 "version 2.9.1" "November 2017"
 
 .SH NAME
 rnano \- a restricted nano