update to Z-Push 2.3.7

CHANGELOG.md

@@ -6,7 +6,8 @@ In Development
 
 Mail:
 
-* Updated to Roundcube 1.3, but unfortunately dropping the Vacation plugin because it has not been supported by its author and is not compatible with Roundcube 1.3.
+* Updated to [Roundcube 1.3](https://roundcube.net/news/2017/06/26/roundcube-webmail-1.3.0-released), but unfortunately dropping the Vacation plugin because it has not been supported by its author and is not compatible with Roundcube 1.3.
+* Updated to [Z-Push 2.3.7](http://download.z-push.org/final/2.3/z-push-2.3.7.txt).
 
 v0.23a (May 31, 2017)
 ---------------------

setup/zpush.sh

@@ -22,8 +22,8 @@ apt_install \
 php5enmod imap
 
 # Copy Z-Push into place.
-TARGETHASH=131229a8feda09782dfd06449adce3d5a219183f
-VERSION=2.3.6
+TARGETHASH=01cdfafcdf6855f566a9cbc5826b3d9930a9b35b
+VERSION=2.3.7
 needs_update=0 #NODOC
 if [ ! -f /usr/local/lib/z-push/version ]; then
 	needs_update=1 #NODOC