Made image lighter/smaller

Removed all unnecessary files and ran update/upgrade.
Added pip2 installation into main script
Release image is using release spm
Merge branch 'patch-1' of https://github.com/stefanthegreat/image into stefanthegreat-patch-1
fixing cleanup, commenting broken removals
moving wolfram-engine removal from owncloud app
fixing debconf warnings
fixing upgrade
disable full upgrade
Guarding deleting files for raspberrypi
properly exclude /data from initial beagle flash
beagle: switching to new base image
beagle: fixing base image name
logging
beagle: trying debian image
trying to move the build to /tmp
no need for resolv conf on beagle debian
beagle: switching back to ubuntu
make sure we have python
allow root login