Fixes #1062, ESXi Driver supports PACKER_CACHE_DIR
Update README.md

Added other supported platforms
builder/vmware: added vmx_data_post option
Merge pull request #1152 from rasa/1149-vmx-data-post-option

builder/vmware: added vmx_data_post option
Update CHANGELOG.md
Merge pull request #1146 from higebu/fix-esxi-driver-iso-upload-path

Fixes #1062, ESXi Driver supports PACKER_CACHE_DIR
packer: isotime is launch time [GH-1153]