[ruby-cvs:70692] hsbt:r63601 (trunk): Promote Matrix to default gems.

[hsbt at ruby-lang.org]

hsbt	2018-06-07 21:10:24 +0900 (Thu, 07 Jun 2018)

  New Revision: 63601

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63601

  Log:
    Promote Matrix to default gems.
    
      The upstream repository is https://github.com/ruby/matrix.

  Added files:
    trunk/lib/matrix/matrix.gemspec
  Modified files:
    trunk/doc/maintainers.rdoc
    trunk/doc/standard_library.rdoc