Webby issues with Ruby 1.9.1 on Linux LTS 12.04?

[leeand00]

When I run Webby on Linux LTS 12.04 I get the following error message and I don't know why:

/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': /var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby/core_ext/string.rb:15: invalid multibyte char (US-ASCII) (SyntaxError)
/var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby/core_ext/string.rb:15: invalid multibyte char (US-ASCII)
/var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby/core_ext/string.rb:15: syntax error, unexpected $end, expecting ')'
    parts = self.split( %r/( [:.;?!][ ] | (?:[ ]|^)["“] )/x )
                                                       ^
    from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby.rb:104:in `block in require_all_libs_relative_to'
    from /var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby.rb:104:in `each'
    from /var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby.rb:104:in `require_all_libs_relative_to'
    from /var/lib/gems/1.9.1/gems/webby-0.9.4/lib/webby.rb:150:in `<top (required)>'
    from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.9.1/gems/webby-0.9.4/bin/webby:37:in `<top (required)>'
    from /usr/local/bin/webby:19:in `load'
    from /usr/local/bin/webby:19:in `<main>'

My best guess is that it has something to do with the new version of Ruby, I've seen a few posts where people have posted this as a bug which was never resolved.  Is there any way to fix this in the short term?

Thank you,
    Andrew J. Leer