* lib/soap/property.rb: add class methods for loading property from
stream/file/propertyfile. propertyfile is a file which is located at
somedir in $:.
* lib/soap/soap.rb, lib/soap/wsdlDriver.rb, lib/soap/rpc/driver.rb,
lib/wsdl/importer.rb: load property from propertyfile 'soap/property'
e.g. /usr/local/lib/ruby/site_ruby/1.8/soap/property.
* test/soap/test_property.rb, test/soap/test_streamhandler.rb: new file.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
