v1.4.0

FFTW v1.4.0

Diff since v1.3.2

Closed issues:

• Docs stop being deployed? (#185)
• Eliminate build step, use Preferences (#188)
• Could not load symbol "fftw_init_threads" (#196)

Merged pull requests:

• Build documentation with Documenter 0.26 (#179) (@giordano)
• Small doc fixes (#184) (@charleskawczynski)
• Require Julia 1.6+, use Preferences, eliminate mutable state (#189) (@staticfloat)
• Run CI with Drone also on Alpine Linux (#190) (@giordano)
• Simplify test/Project.toml and remove redundant deps in Project.toml (#191) (@giordano)
• Mention Preferences in installation docs (#192) (@staticfloat)
• CompatHelper: add new compat entry for "Preferences" at version "1.2" (#193) (@github-actions[bot])
• prevent to library from being serialized at precompile time (#197) (@KristofferC)
• Bump version to 1.4.0 (#198) (@ararslan)