Expose a smattering of functions in libcruby
Expose a smattering of functions in libcruby

There's no real logical grouping to these additions, they just happen to
be functions I needed in my library which uses libcruby

tildeio/helix,tildeio/helix,tildeio/turboruby,tildeio/helix,tildeio/turboruby,tildeio/turboruby,tildeio/helix,tildeio/turboruby