builder/qemu: support user templates in SSH key path
increase SSH timeouts for Amazon builders, they can take a while to spin up at times
Update googlecompute.markdown

A very small hint that you can't just use "packer-images", since buckets need to be globally unique, and must already exist. Attempting to use that results in the error 'Got status 403 from attempt to start resumable upload. Aborting', 'ABORT'
privisioner/chef-client: don't chown with ubuntu [GH-939]
Merge pull request #934 from brettporter/patch-1

website: Update googlecompute.markdown
Merge pull request #926 from CpuID/master

builders/amazon: increase SSH timeouts for Amazon builders
website: update to be a little more clear [GH-933]
website: update timeouts
post-processor/docker-push: allow repo with ports [GH-923]
command/build: -parallel=false to disable parallelization [GH-924]
Merge pull request #918 from stefanozanella/qemu_ssh_key_var

builder/qemu: support user templates in SSH key path
Update CHANGELOG
common: clarify debug mode [GH-907]
Fix syntax error

Fix issue where using double quotes instead of round brackets would cause the following error:
./scripts/devcompile.sh: line 30: 10#1.2 > 10#1.2.1: syntax error: invalid arithmetic operator (error token is ".2 > 10#1.2.1")