builder/amazonebs: sleep between checks for ami create

fixes #50
Fix typo
Fix typo in README file.
Add a new paragraph to make it easier to read.
Add new paragraph to make readme easier to read.
Merge pull request #60 from mitchellh/amazon-request-limit

builder/amazonebs: sleep between checks for ami create
Merge pull request #66 from sergiotapia/fix-typo-in-readme

Fix typo in README file.
Merge pull request #61 from gkarekinian/patch-1

website: Fix typo in the Veewee to Packer doc page
Merge pull request #62 from antonlindstrom/master

website: Update HTML characters for the <enter> command in VMware builder documentation
website: change color of text on selection
Up version for dev
Update CHANGELOG
Merge pull request #67 from mitchellh/website-text-selection

website: change color of text on selection
fix html characters in virtualbox builder doc

This commit removes <, > and instead uses <,> to describe the
enter command in the boot command code block in virtualbox
builder documentation. Noticed this after fixing the VMware doc.