Install vagrant specific network barclamp patch

To avoid crowbar touching the eth0 interface
Run install-suse-cloud from Vagrantfile
Merge pull request #2 from rhafer/networkpatch

Install vagrant specific network barclamp patch
Merge pull request #3 from rhafer/install-suse-cloud

Run install-suse-cloud from Vagrantfile
Use "team" network mode be default
Merge pull request #4 from rhafer/teaming

Use "team" network mode be default
Disable VirtualBox USB2.0 controller

This should make it possible to use the box without having the Extension Pack
installed.
fix /etc/hosts
reduce tmpfs requirement now we are using -DEPS
explain why we still use SP3 and SP3-Updates
improve ordering of packages in config.xml
tmpfs requirements keep going up for some reason :-/
import fresh SP3 appliance from SUSE Studio

  https://susestudio.com/appliance/edit/1180710#/build

(cherry picked from commit c6ce82f53145468eb05040649d3fc6326ecc14ca)
ensure build-custom succeeds
fix image metadata

(cherry picked from commit 99b6392940c5292c6a4d46ecc56ab534900fa3ac)
import nicer kiwi image building script

This comes from

  https://github.com/SUSE/cloud/blob/master/dev-setup/sles11-sp3/build-image.sh

and has some nice improvements from James Tan, including tmpfs support
and cleaner code.

(cherry picked from commit 1bd8b02fcf058075a788617745d2814848e94d3f)
try to fix rm: cannot remove ‘/tmp/kiwi-build’: Device or resource busy

(cherry picked from commit 018e401fe297cab83072e95837da7dd0d16996bd)
only attempt to umount $TMP_DIR if it was tmpfs

(cherry picked from commit 053f1cf25af8d7bbcb083d4be7327ac0fe49fcac)
don't hide failure of rm -rf $TMP_DIR

(cherry picked from commit 5661b2d80d713c3f7fcaa00bf1cbceaaf0ef754b)
fix self-description in build-image.sh

(cherry picked from commit 92e479c2bd681eee9f86308066939907f77c0eb7)