Log Message:
0.42.0:
* Distribution tarballs from Mercurial repositories
* Keyword argument verification
* Add support for Genie to Vala compiler
* Pkgconfig support for additional cflags
* Base options accessible via get_option()
* Allow crate type configuration for Rust compiler
* Simultaneous use of Address- and Undefined Behavior Sanitizers
* Unstable SIMD module
* Import libraries for executables on Windows
* Added build_rpath keyword argument
* Vulkan dependency module
* Limiting the maximum number of linker processes
* Disable implicit include directories
* Support for MPI dependency
* Allow excluding files or directories from install_subdir
* Make all Meson functionality invokable via the main executable
* Pcap dependency detector
* GNOME module mkenums_simple() addition