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
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)
not enough freespace error message
added option to inject dll of choice
fixed comma
fixed os import
Merge branch 'libvirt_currentSnapshot' of https://github.com/mak/cuckoo into mak-libvirt_currentSnapshot

Conflicts:
	lib/cuckoo/common/abstracts.py
Fixes to merge #150
Merge pull request #158 from ikiril01/development

Update MAEC 4.0 Output for MAEC v4.0.1
check task_id value
sort virustotal result by engine
Merge pull request #159 from dmaciejak/development

2 basic changes
Need to return snapshotCurrent or an error is thrown

An error was occurring in KVM when starting attempting to use the current snapshot and not using snapshot labels.
Merge pull request #160 from bladeswords/patch-1

Need to return snapshotCurrent or an error is thrown
Merge pull request #154 from jbremer/development

not enough freespace error message