Fix govet issues

Added go vet and git rev-parse head to appveyor so we can see what we're actually building / testing

Fix 'ephemeral' misspelling.

Add missing option

Add 1/10th second delay between key events to VNC for QEMU

Use go vet instead of go tool vet, and actually run it with make

Rename .html.md files to .html.markdown

Fixes #2546.  Make files under website/source/docs/provisioners conform to
standards for rest of docs.

Update code.google.com/gosshold/ssh to point to golang.org/x/crypto/ssh, since this has been moved into core now

amazon builder: only fetch password for winrm

Fix case for ethernet.generatedAddress property lookup in VMX

Fix last example syntax

Update code.google.com/gosshold/ssh to point to golang.org/x/crypto/ssh, since this has been moved into core now

Fixes #2515

Add options to specify salt remote dirs

Ensure that `/etc/salt` exists

Merge branch 'openstack_metadata' of https://github.com/trumant/packer into trumant-openstack_metadata

Fix handling IPv6 when ssh_interface set (openstack builder)

Updated how vmx entries are handled

Fix funny characters.

Do not require exclusive VNC access while buildling

An additional client can be connected during build time for inspection.
We can manually connect and set our VNC clients to ignore all input or
we can connect with vnc2flv to record the build session for later
verification.

Fix semantic errors in messages

Revise documentation for minion config

amazon/common: store instance ID earlier for cleanup

Updated AWS SDK calls to match the 0.7.0 release of the AWS SDK