Erubis 2.7.0 release candidate

Hi all,

I'll release Erubis 2.7.0 in this week.
I want someone to check whether it works well with Rails 3.

2.7.0 gem:
  http://www.kuwata-lab.com/erubis/erubis-2.7.0.gem
2.7.0 tar.gz:
  http://www.kuwata-lab.com/erubis/erubis-2.7.0.tar.gz

In this release, there are important enhancement and changes which may
have some affect to Rails 3.

* New option ':bufvar' is added to specify buffer variable name.

  ex:
      input = "Hello <%= name %>!"
      eruby = Erubis::Eruby.new(input)
      puts eruby.src
         #=> _buf = ''; _buf << "Hello "; _buf << ( name ).to_s; _buf
<< '!';

      eruby = Erubis::Eruby.new(input, :bufvar=>'@_out')
      puts eruby.src
         #=> @_out = ''; @_out << 'Hello '; @_out << ( name ).to_s;
@_out << '!';

* Remove dependency to 'abstract' library.
  You don't need to install 'abstract' gem.

If there is no problem, it will be released in this week.

I released Erubis 2.7.0.
Thank you.