Security updates for Monday

Security updates have been issued by Arch Linux (python-django and python2-django), Debian (sqlite3, systemd, and vlc), Fedora (mingw-nettle and polkit), Mageia (graphicsmagick, python-django, spice-vdagent, and to), openSUSE (aria2, discount, gpg2, GraphicsMagick, gthumb, haproxy, irssi, java-1_7_0-openjdk, java-1_8_0-openjdk, libgit2, LibVNCServer, and sssd), Red Hat (systemd), Scientific Linux (systemd), Slackware (irssi and zsh), SUSE (LibVNCServer and sssd), and Ubuntu (gnome-bluetooth and systemd).