Boot command section was NOT working

Updating from official repo

If copy and pasted, the boot command section was NOT working due to < and > being translated to HTML code equivalents. Removed javascript tagging on the code block to see if this fixes the resulting display in a browser.

Add Travis CI badge to README
[skip ci]

Fix page title
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Use the new Travis Docker infrastructure and stuff

Fix tutorial source ID
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`ami-9eaa1cf6` is the correct Ubuntu 14.04 AMI for the us-east-1 region.

Fixes #1841

Adding documentation for the environments_path
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Docs fixes for shell provisioner page

website/intro/getting-started: clarify that multiple builders of the same type must have a unique name

Fixes #1718 
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[skip ci]

SCSI Support in virtualbox driver

virtualbox.

s/VirtualBox/VMware in comment
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Fix documentation for openstack_provider and provider config options. 
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builder/parallels: Use most recent DHCP lease when determining IP.

Update plugins.html.markdown

I think this is the required PATH for windows.

Fix amazon instance type on build an image page [skip ci]

[skip ci]

Add `--retcode-passthrough` to salt-call so the build fails when there is an error running `highstate`

This page referred to using a "t1.micro" instance but the template actually uses a "t2.micro".

Create temporary copy of symlink before uploading, fixes #1765

Updated Amazon documentation to reflect use of credentials file
[skip ci]

Allow manifest_file to be a directory for Puppet Masterless Porvisioner