update to master

CHANGELOG.md

CMakeLists.txt

cmake/FindPETSc.cmake

cmake/ThirdPartyLoki.cmake

cmake/ThirdPartyQT4.cmake

docs/user-guide/solvers/incompressible-ns.tex

docs/user-guide/xml/xml-conditions.tex

.../LibUtilities/Interpreter/AnalyticExpressionEvaluator.cpp

.../LibUtilities/Interpreter/AnalyticExpressionEvaluator.hpp

library/LibUtilities/Polylib/Polylib.cpp

library/LibUtilities/Polylib/Polylib.h

solvers/IncNavierStokesSolver/CMakeLists.txt

...IncNavierStokesSolver/EquationSystems/IncNavierStokes.cpp

...s/IncNavierStokesSolver/EquationSystems/IncNavierStokes.h

...ers/IncNavierStokesSolver/Examples/Tet_channel_m8_par.xml

solvers/IncNavierStokesSolver/Tests/WomParams.xml

solvers/IncNavierStokesSolver/Tests/Womersley_PipeFlow.tst

solvers/IncNavierStokesSolver/Tests/Womersley_PipeFlow.xml

tests/Tester.cpp.in

utilities/NekMesh/CMakeLists.txt