Experimental ESXi Support

Added an experimental build ESXi MachineManager support.

Supports snapshots, power state, and networking.
status bug in esxi

status bug
Update modules/machinemanagers/vmware_esx.py
libvirt: find lost snapshot
libvirt: find most current snapshot
Style change: set up vs setup
Style change: ask somebody vs ask to somebody
Add URL for Volatility
Correct spelling: operations vs operaitons
Style change: stumbles (intransitive verb)
Simplify statement
Style change: effort vs efforts
Style change: the fixing [of] actual bugs
Style change: documentation (uncountable)
fix issue of printing invalid xml characters into maec reports
try to reconnect the first time is-running fails (vmware esxi machinemanager)
Merge pull request #1 from jbremer/patch-1

try to reconnect the first time is-running fails (vmware esxi machinemanager)
Added generic package that just executes with cmd /c start
Merge pull request #147 from script-kiddie/docs

Docs
MAEC 4.0 reporting module commit