Fix for the below issue

File "/root/home/sandipd/testr_bhushana_fork/contrail-test/fixtures/nova_test.py", line 279, in create_vm
image = self.get_image(image_name=image_name)
Fi! le "/root/home/sandipd/testr_bhushana_fork/contrail-test/fixtures/nova_test.py", line 94, in get_image
got_image = self.find_image(image_name)
File "/root/home/sandipd/testr_bhushana_fork/contrail-test/fixtures/nova_test.py", line 78, in find_image
sleep(5)

NameError:
global name 'sleep' is not defined
minor..fix imports
Merge pull request #19 from smusuvat/test_parallelism

move flow_tests under serial-scripts, minor..fix in imports for policy test.
1.Separate function for reporting
2.Separate function for serial tests running
3.Rectified the OS_TEST_PATH.Otherwise scripts in serial_scripts folder was not running
Deleting the SIs after the static route test completes
Merge pull request #20 from ganeshahv/test_parallelism

Deleting the SIs after the static route test completes
new file for compute node config operations
fix imports
pep8 fixes & pull other changes that were made in r1.06 branch
pull changes from 1.06, provide way to retry setup verifications on failure
call service instance verification with retry
pull in fixes from r1.06
add topology
Merge pull request #21 from smusuvat/test_parallelism

Test parallelism
Merge pull request #18 from sandip-d/test_parallelism

Fix for the below issue
testcase to check stateful behaviour of SG
topo file for SG test, required for new testcases
removed incomplete test for multiproject, will commit later
Merge pull request #23 from alokkumar223/test_parallelism

Test parallelism
move provision_static_route to vm_fixture