scalability: use new user file
scalability: reactive testing
scalability: runScalabilityTestSuite: Add while/try in getConnection
scalability/runScalabilityTestSuite: add missing library
scalability/runScalabilityTestSuite: Fix missing variable initialization
scalability/runScalabilityTestSuite: hack
benchmark/examples: add scalabilityUsers.py file
scalability: runScalabilityTestSuite: Fix user file path command line option usage