Merge branch 'master' into 'master'

changed the name of a  yum package - "@mate-desktop-environment" instead of "@MATE Desktop"

changed the name of a  yum package - "@mate-desktop-environment" instead of "@MATE Desktop"

See merge request !5

roles/vncserver/vars/CentOS_7_x86_64.yml

 ---
  system_packages:
-   - "@desktop"
+   - "@Desktop"
    - tigervnc-server
    - "@xfce"
    - libXcomposite
@@ -12,4 +12,5 @@
    - graphite2
    - xterm
    - libpng
-   - "@MATE Desktop"
+   - "@mate-desktop-environment"
+   #- "@MATE Desktop"