add option to skip tests in tests_trackerintegration
add unit test for stats view
Merge pull request #277 from hyperkang/SKIPTESTS_TRACKERINTEGRATION

add option to skip tests in tests_trackerintegration
Merge pull request #278 from hyperkang/test_stats_view

add unit test for stats view
fix coverage script
Acknowledgement+Thanks for Jetbrains and Pycharm
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