[wp-trac] [WordPress Trac] #34177: Update package.json devDependencies for WordPress 4.4

[WordPress Trac]

#34177: Update package.json devDependencies for WordPress 4.4
------------------------------+-----------------
 Reporter:  jorbin            |      Owner:
     Type:  task (blessed)    |     Status:  new
 Priority:  normal            |  Milestone:  4.4
Component:  Build/Test Tools  |    Version:
 Severity:  normal            |   Keywords:
  Focuses:                    |
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 New versions of some of the devDependencies have been released.  Let's
 test and upgrade!

 {{{
 "autoprefixer-core" can be updated from ~5.2.1 to ~6.0.1 (Installed:
 5.2.1, Latest: 6.0.1)
 "grunt-browserify" can be updated from ~3.8.0 to ~4.0.1 (Installed: 3.8.0,
 Latest: 4.0.1)
 "grunt-contrib-copy" can be updated from ~0.8.0 to ~0.8.1 (Installed:
 0.8.0, Latest: 0.8.1)
 "grunt-contrib-cssmin" can be updated from ~0.12.3 to ~0.14.0 (Installed:
 0.12.3, Latest: 0.14.0)
 "grunt-contrib-jshint" can be updated from ~0.11.2 to ~0.11.3 (Installed:
 0.11.2, Latest: 0.11.3)
 "grunt-postcss" can be updated from ~0.5.4 to ~0.6.0 (Installed: 0.5.4,
 Latest: 0.6.0)
 "grunt-sass" can be updated from ~1.0.0 to ~1.1.0-beta (Installed: 1.0.0,
 Latest: 1.1.0-beta)
 "matchdep" can be updated from ~0.3.0 to ~1.0.0 (Installed: 0.3.0, Latest:
 1.0.0)
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/34177>
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