* Add version 18.9.0 (w/CMake)
* Add version dependent install methods to handle transition from
Make-based package (17.1) to CMake-based package, using the NEST
package as an example
* Remove unnecessary build_targets method for older Make-based
version
* Don't retrieve just the C/Fortran interfaces for netlib-lapack -
blas/lapack libs are now handled the same for all implementations
* Remove netlib-lapack detection patch
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