v0.15.0-rancher44

[all] overlay2 set as the default storage driver instead of aufs [#92]
[amazonec2] add flag to pass kms key id [#91]
[vsphere] fixed bug where cloned vm/template guestid was not pulling from the box [#90]
[vsphere] fixed bug where cloud init meta-data was not setting the hostname properly [#89]

v0.15.0-rancher43: Merge pull request #88 from aiyengar2/relocate_resolve_nsg_ref

Relocate resolveNSGReference in Azure node driver

v0.15.0-rancher42: Merge pull request #88 from aiyengar2/relocate_resolve_nsg_ref

Relocate resolveNSGReference in Azure node driver

v0.15.0-rancher41: Merge pull request #87 from aiyengar2/remove_register_subscription

Remove register Microsoft.Subscription from Azure

v0.15.0-rancher40: Merge pull request #85 from aiyengar2/revert_os_disk_exists

Add ability to delete unused managed disks on Azure

v0.15.0-rancher39: Merge pull request #77 from aiyengar2/new_nsg_requirements

Enable NSGs shared between multiple machines

v0.15.0-rancher38

Merge pull request #80 from aiyengar2/install-docker-suse

Uplift SUSE provisioning

v0.15.0-rancher37: Merge pull request #82 from StrongMonkey/add-clean-up

Increase interval, add clean up

v0.15.0-rancher36

Merge pull request #78 from aiyengar2/custom_images

Support custom images

v0.15.0-rancher35: Merge pull request #76 from luthermonson/overlay2

change default storage driver for redhat