Release for Xeon Phi

The Xeon Phi code generator is now incorporated in the standard install.zip file. It uses the updated ILCG system to optimise the abstract syntax tree to make use of the gather instructions on the MIC. To compile to the Xeon Phi use the option -cpuMIC . It works as a cross compiler and requires that you have on your path a version of gcc and as that have been renamed to micgcc and micas