0.18.0

New features and improvements:

• Indirect mutations of read-only globals through local aliases
  are now detected (e.g. local t = table; t.foo = "bar").
• New CLI, config, and inline option not_globals for removing
  defined standard and custom globals (#88).
• Custom globals defined as mutable using globals option
  can now be set to read-only using read_globals option
  in overwriting settings (previously globals had priority
  over read_globals even if read_globals was the last
  option used).
• Luacheck exit codes are now documented.

Fixes:

• Warnings that are explictly enabled by inline options are
  now correctly reported. E.g. --luacheck: std none now
  results in warnings for any used globals (#51).