The Intel Compiler for Windows uses the MS runtime library which
deprecates many C functions. We define _CRT_SECURE_NO_DEPRECATE and
_CRT_NONSTDC_NO_DEPRECATE to disable the deprecation warnings.
This converts the CMake license to a pure 3-clause OSI-approved BSD
License. We drop the previous license clause requiring modified
versions to be plainly marked. We also update the CMake copyright to
cover the full development time range.