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
added enhanced behavior processing
Merge pull request #90 from Thorsten-Sick/development

added enhanced behaviour processing
Merged enhanched results in behavior module
Argument fix. Args now do not overwrite other fields anymore
Doing data format changes it properly and everywhere
Merge pull request #128 from Thorsten-Sick/enhanced_behavior_fix

Enhanced behavior fix
Changed logging severity in strange cases
Exception handling instantiating modules
Fixed typo
Removed useless declarations
Fixed typo
Renamed
Merge branch 'development' of https://github.com/cuckoobox/cuckoo into development
Fixed typo
Added docstrings
Removed not used imports
Fixed typos