rdoc version 2.2.1 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.

See RDoc for a description of RDoc's markup and basic use.

Changes:

### 2.2.1 / 2008-09-24
This version provides some minor fixes and enhancements to 2.2.0 intended
to polish RDoc for Ruby 1.9.1.

* 3 Minor Enhancements
* Support for parsing RDoc from SWIG. Ruby patch #10742 by Gonzalo
Garramuno, #13993 by Steven Jenkins.
* Simple support for Perl POD documentation. Patch by Hugh Sasse.
* Changed the default character set of RDoc's output from iso-8859-1 to
utf-8.

* 9 Bug Fixes
* Explicitly set the html template's text color, so that the generated
documentation will display correctly on browsers with custom text and
background color settings (patch by Luther Thompson).
* Ensure that RDoc correctly will associate an alias and a method, even
if it encounters the alias first because the alias lives in a different
file.
* Fix the parsing of multiline constants (patch by Chris Alfeld and
Joel VanderWerf)
* Make --exclude usuable. Ruby patch #11671 by Trans.
* Detect inline C functions. Ruby Bug #11993 by Florian Frank.
* Fix an issue in which RDoc might not document a class'
superclass correctly if the class was defined in multiple files and
depending on the order in which RDoc processed the files. This should
ensure that the child class -> parent class relationship is correct in
ri documentation, allowing ri to lookup inherited methods (i.e., File.read).
* Stop ri from crashing when it looks for a completely bogus method (i.e.,
File#reada). Now, ri exits with a helpful error message.
* Fixed missing display of constant values in ri.
* Fixed display of constants in ri's html output.