Bump standards-vertion to 4.4.0; Drop mate-session-manager

debian/changelog

@@ -1,10 +1,15 @@
 ukui-screensaver (2.0.7-1) unstable; urgency=medium
 
+  [ Liu Yuanpeng ]
   * Set background widget on top. (LP: #1828955)
   * Set default background color. (LP: #1828982)
   * Fix that sometimes can't enter password.
 
- -- handsome_feng <[email protected]>  Thu, 04 Jul 2019 20:33:06 +0800
+  [ handsome_feng ]
+  * Bump standards-vertion to 4.4.0.
+  * Drop mate-session-manager.
+
+ -- handsome_feng <[email protected]>  Wed, 14 Aug 2019 09:04:48 +0800
 
 ukui-screensaver (2.0.6-0ubuntu1) disco; urgency=medium
 

debian/control

@@ -15,15 +15,15 @@ Build-Depends: debhelper (>= 12),
                libx11-dev,
                libxtst-dev,
                libgsettings-qt-dev
-Standards-Version: 4.3.0
+Standards-Version: 4.4.0
 Homepage: https://www.github.com/ukui/ukui-screensaver
 Vcs-Git: https://github.com/ukui/ukui-screensaver.git
 Vcs-Browser: https://github.com/ukui/ukui-screensaver
 
 Package: ukui-screensaver
 Architecture: any
 Depends: ${misc:Depends}, ${shlibs:Depends},
-         ukui-session-manager | mate-session-manager,
+         ukui-session-manager,
          mate-desktop-common
 Replaces: ukui-screensaver-common (<< 2.0.0)
 Description: Screensaver for UKUI desktop environment