Move ipfs users to tmp

src/freedombone-image-customise

     chmod +x /home/$MY_USERNAME/Desktop/Users.desktop
     chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Desktop/Users.desktop
 
-    if [ -f /home/$MY_USERNAME/.ipfs-users ]; then
+    if [ -f /tmp/.ipfs-users ]; then
         echo '[Desktop Entry]' > /home/$MY_USERNAME/Desktop/sites.desktop
         echo 'Type=Application' >> /home/$MY_USERNAME/Desktop/sites.desktop
         echo "Name=Visit a site" >> /home/$MY_USERNAME/Desktop/sites.desktop

src/freedombone-image-mesh

         shred -zu /home/$MY_USERNAME/.ipfs-public
     fi
 
-    if [ -f /home/$MY_USERNAME/.ipfs-users ]; then
-        shred -zu /home/$MY_USERNAME/.ipfs-users
-    fi
-
     su -c "$IPFS_COMMAND init -b $IPFS_KEY_LENGTH" - $MY_USERNAME
     if [ ! -d /home/$MY_USERNAME/.ipfs ]; then
         echo "IPFS could not be initialised for user $MY_USERNAME" >> $INSTALL_LOG

src/freedombone-mesh-visit-site

 # An optional suffix to be appended to the URL
 SUFFIX=$1
 
-IPFS_USERS_FILE=/home/$USER/.ipfs-users
+IPFS_USERS_FILE=/tmp/.ipfs-users
 if [ ! -f $IPFS_USERS_FILE ]; then
     exit 0
 fi

src/meshavahi

 IPFS_PORT=4001
 IPFS_PATH=/usr/bin
 IPFS_COMMAND=$IPFS_PATH/ipfs
-IPFS_USERS_FILE=/home/$MY_USERNAME/.ipfs-users
+IPFS_USERS_FILE=/tmp/.ipfs-users
 IPFS_PUBLIC=/home/$MY_USERNAME/.ipfs-public
 
 # contains the output of the avahi command