Add documentation listing the openSUSE images and their differences

As tracked in Trello [1]. List of published Crowbar openSUSE builds and
their intended usage.

[1] https://trello.com/card/document-differences-between-opensuse-appliances/50809fb54fa7ad9c1a000f4d/148
we should specify nginx as nginx-light or it will conflict o nginx-full from swift with message like
Package nginx is a virtual package provided by:
  nginx-full 1.2.7-0ubuntu0ppa1~precise
  nginx-light 1.2.7-0ubuntu0ppa1~precise
Merge pull request #1776 from jamestyj/jamestyj-opensuse-appliances

Add documentation listing the openSUSE images and their differences
SUSE specific install-chef is no longer needed
Update dev-vm-openSUSE.md
Update start-vm script and associated docs
Update start-vm script and docs

- Add `--preallocate` option to start-vm script
- Add test and web instance instructions
Update dev-vm.md documentation
update make-pkg with some better error reporting and debug flag
Merge pull request #1779 from aabes/make-pkg-debug

https://github.com/crowbar/crowbar/pull/1779

Merged by devtool for VictorLowther
Fix up make-pkg to correctly handle validating deployment jsons using schema fragments.
Merge pull request #1777 from MirantisDellCrowbar/feature/pfs/betty/grizzly

https://github.com/crowbar/crowbar/pull/1777

Merged by devtool for VictorLowther
Merge pull request #1778 from rhafer/master

https://github.com/crowbar/crowbar/pull/1778

Merged by devtool for VictorLowther
Added ability to set environment variable to control output of packages
to a non-current folder without requiring uuse of the --destdir parameter.
Merge pull request #1782 from cloudsleuth/pull-req-master-a7e19edf66ff109dcdc817bdaea211f0eaeda117

Added PACKAGE_DEST environment variable handler [1/1]
Merge pull request #1780 from VictorLowther/pull-req-master-4a8fcfd107fc247b14245c49422348f80fea89f2

https://github.com/crowbar/crowbar/pull/1780

Merged by devtool for VictorLowther
Have feature/grizzly stash the enitre crowbar.yml in to Chef.

This will remove some magic from the Git barclamp's build routine.
Make sure we handle git repos properly at barclamp install time.
Add native support for cloning and saving git repos to the build system
Update build process to make it a little more friendly to PFS builds.