CHANGELOG updates

CHANGELOG.md

 ## 0.8.0 (unreleased)
 
+FEATURES:
+
+IMPROVEMENTS:
+
+* builder/googlecompute: Support for ubuntu-os-cloud project
+* builder/googlecompute: Support for OAuth2 to avoid client secrets file
+* builder/googlecompute: GCE image from persistant disk instead of tarball
+* builder/qemu: Checksum type "none" can be used
+* provisioner/chef: Generate a node name if none available
+* provisioner/chef: Added ssl_verify_mode configuration
+
+BUG FIXES:
 
+* builder/parallels: Fixed attachment of ISO to cdrom device
+* builder/parallels: Fixed boot load ordering
+* builder/digitalocean: Fixed decoding of size
+* builder/digitalocean: Fixed missing content-type header in request
+* builder/digitalocean: Fixed use of private IP
+* builder/digitalocean: Fixed the artifact ID generation
+* builder/vsphere: Fixed credential escaping
+* builder/qemu: Fixed use of CDROM with disk_image
+* builder/aws: Fixed IP address for SSH in VPC
+* builder/aws: Fixed issue with multiple block devices
+* builder/vmware: Upload VMX to ESX5 after editing
+* communicator/docker: Fix handling of symlinks during upload
+* provisioner/chef: Fixed use of sudo in some cases
+* core: Fixed build name interpolation
+* postprocessor/vagrant: Fixed check for Vagrantfile template
 
 ## 0.7.2 (October 28, 2014)