Does not compile with ICC

[Jacob Hinkle]

If you try compiling with CC=icc and CXX=icc or CXX=icpc, using Intel's compilers, then Code/Cxx/src/CMakeLists.txt:165 complains that it can't figure out our compiler and doesn't know how to run the preprocessor.

It should be pretty trivial to fix this but I wanted to put this bug in to let you all know that I'll be testing stuff with the intel compilers and mkl. i have access to some xeon phi coprocessors as well, and have played a bit with them. If I get some time I may try to get some of our openmp stuff to run with automatic offloading.

[Jacob Hinkle]

Add Intel to list of gcc-like preprocessor switches

This seems to fix #61. Note that icc does give a warning if not using -openmp, about unknown #pragma omp parallel

→ <<cset c220793cc61c>>