Added missing dirs to vpath

Also allow PROVISIONER, PROVISIONER_VERSION, and BUILDER_TYPES to be specified on the command line (or in the environment)
Also set the default for PROVISIONER_VERSION to be latest, if PROVISIONER is not provisionerless
added local.mak to Makefile
Update README.md
Update README.md
Update win2012r2-standard-cygwin.json

Added `cygwin.sh`, which is required.
Merge pull request #58 from rasa/patch-1

Update win2012r2-standard-cygwin.json
Merge pull request #57 from rasa/fix-vdirs-and-makefile-vars

Added missing dirs to vpath
Adding Debian 7.5.0 template and updating new Debian 7.4.0 image locations
Fixing vm_name for debian75-i386 box
Fixing issue with the Ubuntu desktop image bailing out with an error the first time it is launched - need to define shared folder properly
Reverting back to original preseed-desktop.cfg name - thought I would need to make changes for 14.04, but turns out there is no alternate CD and only the server image works with a preseed, so need a different approach there
Adding Ubuntu 14.04 desktop template
fixing salt provisioner

Salt was calling a nonexistent install_puppet function.  Corrected to call install_salt function.

Signed-off-by: W. S. Wellington <bwellington@fulcrum.net>
Removing test Vagrantfiles because vagrant-serverspec does the job much better.
Update stub to have a little more realistic includes.
Updating test harness stubs to be a little more realistic
vagrant-serverspec needs require_relative
vagrant-serverspec needs require_relative
Configuring autologin for Ubuntu 14.04 desktop
Merge pull request #59 from thewellington/ubuntu_salt_provisioner

fixing salt provisioner
Adding Puppet Provisioner for Ubuntu Boxes