Improvements to the init process

Move some files to locations that make more sense...
Downloads go to Downloads
Init scripts go to an "init" directory
Add a script for clearing up some memory - May or may not use it.

overlay/etc/cont-init.d/30-configure_dbus.sh

@@ -0,0 +1,26 @@
+
+# Configure dbus
+echo "**** Configure container dbus ****";
+if [[ "${HOST_DBUS}" == "true" ]]; then
+    echo "Container configured to use the host dbus";
+    # Disable supervisord script
+    sed -i 's|^autostart.*=.*$|autostart=false|' /etc/supervisor/conf.d/dbus.conf
+else
+    echo "Container configured to run its own dbus";
+    # Enable supervisord script
+    sed -i 's|^autostart.*=.*$|autostart=true|' /etc/supervisor/conf.d/dbus.conf
+    # Configure dbus to run as USER
+    sed -i "/  <user>/c\  <user>${USER}</user>" /usr/share/dbus-1/system.conf
+    # Remove old dbus session
+    rm -rf ${USER_HOME}/.dbus/session-bus/* 2> /dev/null
+    # Remove old dbus pids
+    mkdir -p /var/run/dbus
+    chown -R ${PUID}:${PGID} /var/run/dbus/
+    chmod -R 770 /var/run/dbus/
+    # Generate a dbus machine ID
+    dbus-uuidgen > /var/lib/dbus/machine-id
+    # Remove old lockfiles
+    find /var/run/dbus -name "pid" -exec rm -f {} \;
+fi
+
+echo "DONE"