Added test case for loadbalancer
Modified the cli.vm.export_create_from-tests from capturing the datadisk

Modified the cli.vm.export_create_from-tests from capturing the datadisk
Load balancer test cases and testcases for fixes added
vm capture tests nock files regenerated
Code review comments added
negative testcases and retry logic added
Indentation added to the testcase files
Reordering the testcases
Merge pull request #1 from vikasmathod/LoadBalance

Load balance testcases added