Remove unnecessary quotes and curly braces.
Simplify calls to meson.

Run native test suite instead of calling lv2lint manually.

Add glew/libGLEW.so as new dependency.

Adding PGP signature of upstream developer:
'5AE26CEBBF49705C19FB273A30258F99258CB76A': Hanspeter Portner <dev@open-music-kontrollers.ch>.
Switching to meson from arch-meson and enabling LTO and PIE.

Adding glu to makedepends and lv2lint to checkdepends.
Running lv2lint against the entire lv2 bundle.
Updating maintainer info.