Upgrade to COOL 3.1.1

src/CoolKernel/CoolKernel/VersionInfo.h

src/PyCoolUtilities/python/PyCoolReferenceDb/__init__.py

src/RelationalCool/src/RelationalDatabase.cpp

src/RelationalCool/tests/RalDatabase/test_RalDatabase.cpp

src/Utilities/PerformanceReport/runTest.py