shinydashboard 0.5.1
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* Logout panels from Shiny Server Pro were previously not visible, but now they
  are.

* If a `sidebarUserPanel` doesn't have an image, space for the image is no
  longer allocated.

* `tabNames` are now validated so that illegal characters result in an error
  early. (#66)

* `sidebarUserPanel` now displays properly. (#70)

* `radioButtons` did not wrap, but now they do. (#60)

shinydashboard 0.5.0
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* Updated to AdminLTE 2.1.2 (406de4e). Please note that some CSS selectors have
  changed, so if you are using custom CSS, it may require modification. The
  documentation at http://rstudio.github.io/shinydashboard/appearance.html has
  some updated examples.

* shinydashboard now respects the `shiny.minified` option.

* Collapse buttons on boxes trigger `shown` and `hidden` events. Previously they
  did not, which resulted in dynamic content not working for boxes that started
  collapsed. (#17, #42)

* Dynamic menuSubItems now work in the sidebar. (#54)

* Arbitrary content may now be used in a `sidebarMenu()`, not just `menuItem`s.
  (#44)

* Added options to set the width of `dashboardHeader()` and
  `dashboardSidebar()`. (#43, #45, #54)
