Reuse Hash for Rubinius::Metrics values.
Updated Changelog.
Updated News.
Version 2.4.0.
Reset release date.
Added C-API spec for autoload resolution from rb_class_to_path, rb_class2path.
Fixed horrible abuse of Ruby syntax.
Handle autoload in rb_path2class, rb_path_to_class.
Added C-API specs for more autoload resolution.
Fixed autoload resolution in C-API.
Unlock objects after fork() without locking.
Added MRI-specific GC-specific C-API defines for psych.
Fixed require_relative. Fixes #2976. Fixes #3163.
Add spec for File.fnmatch and FNM_EXTGLOB | FNM_PATHNAME
Don't just test FNM_EXTGLOB

Closes #3228
Describe define_method interaction w UnboundMethod

Thanks to @jc00ke for pairing with me on this!
tag failing unbound method specs
Merge pull request #3229 from jbr/define_method

Add some UnboundMethod specs

Thanks @jbr!
Updated CI specs to RubySpec 88e8a624.
Updated CI tags.