0.4.0

Added

• Support exported global variables (#32 by @Hywan)

  instance = Wasmer::Instance.new bytes
  x = instance.globals.x
  
  assert x.mutable
  assert_equal x.value, 7
  
  x.value = 42
  
  assert_equal x.value, 42

• Support memory without an exported memory (#31 by @Hywan)

Changed

• Set @memory to nil if none is exported (#33 by @Hywan)
• Migrate CI from CircleCI to Github Actions (#28 by @Hywan)
• Format code (#26 by @Atul9)
• Update Rutie to 0.7.0 (Rust) and 0.0.4 (Ruby) (#23 by @Hywan)
• Update Wasmer from 0.6.0 to 0.14.0 (#23, #24, #25, #35, by @Hywan)

Security

• Update rake and other dependencies (#36 by @Hywan)