Log Message:
Update devel/ruby-rbtree to 0.3.0.

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

2009-11-14  OZAWA Takuma

	* version 0.3.0 released.

2009-11-10  OZAWA Takuma

	* rbtree.c: applied patches for Ruby 1.9 by Florian Gilcher and
	Nobu Nakada. Thanks.
	http://redmine.ruby-lang.org/issues/show/2348

	* test.rb: ditto.

	* extconf.rb: ditto.

	* extconf.rb: remove options for only gcc.

	* test.rb (test_inspect): correct recursion tests.

	* rbtree.c (rbtree_to_s_recursive): should return if recursive.

	* test.rb (test_to_s): add recursion tests.