rdoc version 2.1.0 has been released!

RDoc is an application that produces documentation for one or more Ruby source
files. RDoc includes the `rdoc` and `ri` tools for generating and displaying
online documentation.

At this point in time, RDoc 2.x is a work in progress and may incur further
API changes beyond what has been made to the RDoc 1.0.1. Command-line tools
are largely unaffected, but internal APIs may shift rapidly.

Changes:

### 2.1.0 / ??

* 3 Major Enhancements:
* RDoc now knows about meta-programmed methods, see RDoc::Parser::Ruby
* Reorganized parsers under RDoc::Parser base class
* ri now walks the ancestors of a class looking for a method e.g. ri
File#read displays documentation for IO#read (may require regeneration of
ri data)
* 5 Minor Enhancements:
* Allow links to files
* Default options now taken from RDOCOPT environment variable
* Class method documentation can be found at toplevel now (def X.foo)
* Allow HTML templates distributed as gems to be loaded with the -T option,
just like the standard templates in rdoc/generator/html (so an HTML
template lib/new_template.rb in a gem can be used with rdoc -T new_template)
* `rdoc -v` prints out files, classes, modules and methods as it goes
* 11 Bug Fixes:
* `ri Foo.bar` now looks for class methods also
* Sections work in the default template again
* Doesn't warn about :foo:: list item being an unrecognized directive
* RDoc no longer converts characters inside tt tags
* Fixed "unitialized constant RDoc::Markup::ToHtml::HTML"
* Fixed generation of relative links
* Fixed various diagram generation issues
* Fixed templates broken by switch to erb
* Fixed issue with <!-- --> style comments
* Lowercase words are no longer rdoc'd as methods without leading #, as
described in the documentation
* RDoc now correctly sets superclasses if they were originally unknown