Ruby

merge revision(s) 39384,39509,39511: [Backport #7961]

    * lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
      new attribute to read/write entity expansion text limit.  the default
      limit is 10Kb.

    * lib/rexml/text.rb (REXML::Text.unnormalize): check above attribute.

    * lib/rexml/document.rb: move entity_expansion_limit accessor to ...

    * lib/rexml/rexml.rb: ... here to make rexml/text independent from
      REXML::Document. It causes circular require.

    * lib/rexml/document.rb (REXML::Document.entity_expansion_limit):
      deprecated.

    * lib/rexml/document.rb (REXML::Document.entity_expansion_limit=):
      deprecated.

    * lib/rexml/text.rb: add missing require "rexml/rexml" for
      REXML.entity_expansion_limit.
      Reported by Robert Ulejczyk. Thanks!!! [ruby-core:52895] [Bug #7961]

    * lib/rexml/document.rb: move entity_expansion_text_limit accessor to ...

    * lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):

    * lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit=):
      REXML.entity_expansion_text_limit.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@40812 b2dd03c8-39d4-4d8f-98ff-823fe69b080e