Code Refactory for VM Tests

* adding env variable checks
* remove unused variables and libs
* adding retry for econreset and timeout errors
* bug fixes
* Removing inter-dependency between test files
* Indentation
adding Static Vm tests
removing duplicate file

the deleted file is same as cli.vm.create_staticvm-tests
Update util.js
Merge pull request #45 from acharyarajiv/OpenTech_PR

Looks good to me.