empty password. [ruby-core:10290]
* lib/uri/generic.rb (URI::Generic::set_password): password can be
cleared by nil. [ruby-core:10290]
* lib/uri/common.rb (escape): regard second string argument as a
character set properly. [ruby-dev:27692]
* lib/uri: Lovely RDOC patches from mathew (metaATpoboxDOTcom).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@11747 b2dd03c8-39d4-4d8f-98ff-823fe69b080e