Fixes #3 via minor documentation fix and setting default properly (in the net_device template value, virtio is incorrect -- must be virtio-net).
Moved the 1 sec timeout to the export step
Formatted contributions
provisioner/salt-masterless: move states to /srv/salt, not /srv/salt/states

Latest version copies local state tree to {tmp}/states and then executes `mv {tmp}/states /srv/salt/`. This creates a `/srv/salt/states` instead of the correct `/srv/salt` directory.
provisioner/salt-masterless: use communicator.UploadDir
builder/digitalocean: Scrub config before logging [GH-516]
Merge pull request #518 from mitchellh/fix516

builder/digitalocean: Scrub config before logging
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Fix race condition after launching EC2 instance

It is possible for an instance to not immediately exist after it is
launched. Previously, InstanceStateRefreshFunc would crash if this race
condition were realized.

This change takes the exact same approach of the function above,
AMIStateRefreshFunc, treating 'InvalidInstanceID.NotFound' as if there
were an empty result.
common/config: config filter function [GH-521]

Fixes #521
common/config: strip keys appropriate for OpenStack.
communicator/ssh: explicitly set c.conn = nil
Merge pull request #531 from mitchellh/521

common/config: config filter function [GH-521]
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Merge pull request #522 from patricklucas/fix_instance_not_found_race

builder/amzon: fix race condition after launching EC2 instance
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Merge pull request #512 from hoshposh/vbox-shutdown-issue

builder/virtualbox: sleep after shutdown before export to avoid session locks
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Merge pull request #503 from zimbatm/fix/vagrant-aws-instance

post-processor/vagrant: support instance store AMIs [GH-503]
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