The commit "Disable Intel CRT deprecation warnings" broke the logic that
disabled MS's CRT deprecation warnings. This fixes the logic to disable
the warnings for both MSVC and Intel.
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.
