Conflicts:
	examples/advection/advectionProblem_impl.h
	examples/inviscid-flow/1d/eulerProblem_impl.h
	examples/inviscid-flow/2d/eulerProblem.h
	examples/inviscid-flow/eulerProblem_impl.h
	src/TNL/Solvers/ODE/Euler_impl.h

* master:
  Fixed size parameters in tnl-benchmark-blas
  Fixed array operations benchmark for CUDA

Apparently there is an abs function defined in <cstdlib>, which works
only on integers. We want the std::abs overloads defined in <cmath>,
which are used by TNL::abs.

clang rocks!

http://stackoverflow.com/questions/29136607/c-what-is-wrong-with-abs#29136774

Adding Gnuplot writer for vector field.

The methods did not work with zero array size, so extra checks were
added.

Refactoring transport equation using the vector norm test function.