exchanged MKL for generic BLAS lib

CMakeLists.txt

cmake/FindMKL.cmake

cmake/PIMConfig.cmake.in

examples/CMakeLists.txt

examples/mpi/complex/dense/CMakeLists.txt

examples/mpi/dcomplex/dense/CMakeLists.txt

examples/mpi/double/dense/CMakeLists.txt

examples/mpi/double/pde/CMakeLists.txt

examples/mpi/single/dense/CMakeLists.txt

examples/mpi/single/pde/CMakeLists.txt

examples/sequential/complex/dense/CMakeLists.txt

examples/sequential/dcomplex/dense/CMakeLists.txt

examples/sequential/double/CMakeLists.txt

examples/sequential/double/dense/CMakeLists.txt

examples/sequential/double/harwell-boeing/CMakeLists.txt

examples/sequential/double/pde/CMakeLists.txt

examples/sequential/single/dense/CMakeLists.txt

examples/sequential/single/harwell-boeing/CMakeLists.txt

examples/sequential/single/pde/CMakeLists.txt

examples/sequential/single/pvp-pde/CMakeLists.txt