- update to 1.5.2
* Features
* XML::Builder#comment allows creation of comment nodes.
* CSS searches now support namespaced attributes. #593
* Java integration feature is added. Now, XML::Document.wrap
and XML::Document#to_java methods are available.
* RelaxNG validator support in the `nokogiri` cli utility. #591 (thanks, Dan Radez!)
* Bugfixes
* Fix many memory leaks and segfault opportunities. Thanks, Tim Elliott!
* extconf searches homebrew paths if homebrew is installed.
* Inconsistent behavior of Nokogiri 1.5.0 Java #620
* Inheriting from Nokogiri::XML::Node on JRuby (1.6.4/5) fails #560
* XML::Attr nodes are not allowed to be added as node children, so an
exception is raised. #558
* No longer defensively "pickle" adjacent text nodes on
Node#add_next_sibling and Node#add_previous_sibling calls. #595.
* Java version inconsistency: it returns nil for empty attributes #589
* to_xhtml incorrectly generates

when tag is empty #557
* Document#add_child now accepts a Node, NodeSet, DocumentFragment,
or String. #546.
* Document#create_element now recognizes namespaces containing
non-word characters (like "SOAP-ENV"). This is mostly relevant to
users of Builder, which calls Document#create_element for nearly
everything. #531.
* File encoding broken in 1.5.0 / jruby / windows #529
* Java version does not return namespace defs as attrs for ::HTML #542
* Bad file descriptor with Nokogiri 1.5.0 #495
* remove_namespace! doesn't work in pure java version #492
* The Nokogiri Java native build throws a null pointer exception
when ActiveSupport's .blank? method is called directly on a parsed