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
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
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
move provision_static_route into createVM step, change provision_static_route to run from vm_fixture
remove provision_static_route as separate step, its moved into createVM
__init__ file for serial_scripts dir