Change distro to stretch

src/freedombone-addcert

     fi
 
     if [ ! -f /usr/bin/certbot ]; then
-        apt-get -yq install certbot -t jessie-backports
+        apt-get -yq install certbot
         if [ ! -f /usr/bin/certbot ]; then
             echo $'LetsEncrypt certbot failed to install'
             exit 762830

src/freedombone-app-irc

         return
     fi
 
-    apt-get -yq -t jessie-backports install znc
+    apt-get -yq install znc
 
     adduser --disabled-login --gecos 'znc' znc
 

src/freedombone-base-email

     if [ ! -d /etc/exim4 ]; then
         return
     fi
-    # This installation doesn't work, results in ruby errors
-    # There is currently no schleuder package for Debian jessie
     if [[ $(is_completed $FUNCNAME) == "1" ]]; then
         return
     fi

src/freedombone-image-customise

     chroot "$rootdir" apt-get -yq install nfs-kernel-server
 
     if [[ $ARCHITECTURE == 'amd64' ]]; then
-        chroot "$rootdir" apt-get -yq install linux-image-amd64 -t jessie-backports
+        chroot "$rootdir" apt-get -yq install linux-image-amd64
     fi
 
     if [[ $ARCHITECTURE == 'qemu'* || $ARCHITECTURE == 'amd64' || $ARCHITECTURE == 'x86_64' || $ARCHITECTURE == 'i686' || $ARCHITECTURE == 'i386' ]]; then
     DEBIAN_REPO='ftp.de.debian.org'
 fi
 if [ ! $DEBIAN_VERSION ]; then
-    DEBIAN_VERSION='jessie'
+    DEBIAN_VERSION='stretch'
 fi
 
 set_apt_sources $BUILD_MIRROR

src/freedombone-image-makefile

 BUILD_MIRROR ?= http://httpredir.debian.org/debian
 IMAGE_SIZE ?= 8G
 IMAGE_NAME ?= 'full'
-SUITE ?= jessie
+SUITE ?= stretch
 # include source packages in image?
 SOURCE ?= false
 

src/freedombone-utils-setup

     architecture_type=$(uname -a)
 
     if [[ "$architecture_type" == *"amd64"* ]]; then
-        apt-get -yq install linux-image-amd64 -t jessie-backports
+        apt-get -yq install linux-image-amd64
     fi
 }
 

src/freedombone-vars

 # Whether this system is being installed within a docker container
 INSTALLED_WITHIN_DOCKER="no"
 
-DEBIAN_VERSION="jessie"
+DEBIAN_VERSION="stretch"
 
 # social key management
 ENABLE_SOCIAL_KEY_MANAGEMENT="no"