Allow OpenStack builder to skip certificate verification
Update CHANGELOG.md

* builder/openstack: skip certificate verification [GH-1121]
Fix http_files typo in comments
Update post-processors.html.markdown

s/virtualbox/virtualbox-iso/
Update inspect.html.markdown

s/virtualbox/virtualbox-iso/
Update provisioners.html.markdown

s/virtualbox/virtualbox-iso/
Add null builder reference to Docs
Correct example to use ssh_username/ssh_password
Update docs.erb
builder/vmware-vmx: add floppy_files support

fixes #1057
Update platforms.html.markdown

Added Parallels
common: add test for empty val
virtualbox: use local VBoxGuestAdditions.iso by default

fixes #1123
updated docs
Update CHANGELOG
Force LANG=C before appending rest of environment, as only first occurence is used
Update README.md

Added other supported platforms
builder/vmware: added vmx_data_post option
Update CHANGELOG.md
Fixes #1062, ESXi Driver supports PACKER_CACHE_DIR