Change default cache dir for Windows

[afiune]

We are not allow to use the DRIVE C: when sharing a folder in
vagrant/virtualbox because Windows doesn't like the fact that you have
the colon.

We now default to /omnibus/cache that Windows will understand as:

%SYSTEMDRIVE%/omnibus/cache

Signed-off-by: Salim Afiune [email protected]

[afiune]

Tested with @mwrock :

➜  tk-windows git:(master) kitchen create windows-7
-----> Starting Kitchen (v1.15.0-dev)
-----> Creating <win-windows-7>...
       Bringing machine 'default' up with 'virtualbox' provider...
       ==> default: Importing base box 'windows-7'...
==> default: Matching MAC address for NAT networking...
       ==> default: Setting the name of the VM: kitchen-tk-windows-win-windows-7_default_1480957173628_14300
       ==> default: Clearing any previously set network interfaces...
       ==> default: Preparing network interfaces based on configuration...
           default: Adapter 1: nat
       ==> default: Forwarding ports...
           default: 3389 (guest) => 3389 (host) (adapter 1)
           default: 5985 (guest) => 5985 (host) (adapter 1)
           default: 22 (guest) => 2222 (host) (adapter 1)
           default: 5986 (guest) => 55986 (host) (adapter 1)
       ==> default: Running 'pre-boot' VM customizations...
       ==> default: Booting VM...
       ==> default: Waiting for machine to boot. This may take a few minutes...
           default: WinRM address: 127.0.0.1:5985
           default: WinRM username: vagrant
           default: WinRM execution_time_limit: PT2H
           default: WinRM transport: negotiate
       ==> default: Machine booted and ready!
       ==> default: Checking for guest additions in VM...
           default: The guest additions on this VM do not match the installed version of
           default: VirtualBox! In most cases this is fine, but in rare cases it can
           default: prevent things such as shared folders from working properly. If you see
           default: shared folder errors, please make sure the guest additions within the
           default: virtual machine match the version of VirtualBox you have installed on
           default: your host and reload your VM.
           default:
           default: Guest Additions Version: 4.3.14
           default: VirtualBox Version: 5.0
       ==> default: Mounting shared folders...
           default: /omnibus/cache => /Users/salimafiune/.kitchen/cache
       ==> default: Machine not provisioned because `--no-provision` is specified.
       [WinRM] Established

       Vagrant instance <win-windows-7> created.
       Finished creating <win-windows-7> (1m57.00s).
-----> Kitchen is finished. (1m59.93s)

[afiune]

cc/ @test-kitchen/maintainers