Log Message:
Update textproc/ruby-redcloth to 4.2.3.

* Use lang/ruby/gem.mk instead of misc/rubygems/rubygem.mk.
* Add LICENSE.
* Remove default value of GEM_BUILD.
* Remove RUBY_HAS_ARCHLIB.

=== 4.2.3 / March 1, 2010

* Allow quotes in styles so you can do things like listing font-families. [Jason \ 
Garber]
* Fix uninitialized constant Gem::Specification::PLATFORM_CROSS_TARGETS in Rails \ 
[Jason Garber]
* Allow uppercase letters in class and ID attributes even though it's invalid \ 
[Jason Garber]
* Fix compatibility with newer Echoe, by using full-name for Platform [Flameeyes]
* Fixes for PPC/PPC64 [Flameeyes]
* Added a modified copy of 'Textile Reference' to a doc folder [codesponge]
* Add footnote return links [Jonathan Rudenberg]
* Add bug report link to the README

=== 4.2.2 / June 30, 2009

* Fix regression where percent wasn't accepted in style attribute. [Jason Garber]

=== 4.2.1 / June 16, 2009

* Fix regression where period wasn't accepted in style attribute. [Jason Garber]