shinydashboardPlus 0.5.0

Bug fixes

• Fix an important issue in the rightSidebar(). When the function was called without
  any element, it triggered an error because the number of items was 0
• clicking on starBlock(), navPillsItem() and the socialBlock() title does not reload
  or redirect at the top of the page
• clicking on the attachmentBlock() link open a new page in a new tab (target = "_blank")
• correct vignettes title (https://cran.r-project.org/package=shinydashboardPlus)

Breaking changes

• change argument name in dropdownItem() (boxPlus()): "target" is replaced by "url".
• Widely simplify the rightSidebar() function: remove rightSidebarTabList(), rightSidebarTabItem() and
  rightSidebarPanel() from the user interface. See here to discover how to set up
  a new rightSidebar()

Major changes

• add a "width" argument to the rightSidebar() (set to 230 pixels by default) to
  improve customization.
• new function setShadow() to set shadow and hover effects on any elements
• add an "active" argument to rightSidebarTabContent(): see #4
• add a "sidebar_background" argument to dashboardPagePlus()
• new verticalProgress() bars!
• new functions in the rightSidebar(): rightSidebarMenu(), rightSidebarMenuItem(), menuIcon()
  and menuInfo() (see shinydashboardPlusGallery())
• new dropdown menu for boxPlus(): add dropdownItemList(), dropdownItem() and dropdownDivider() functions (see shinydashboardPlusGallery())
• add "width" and "height" args to timelineItemMedia() and userPostMedia()
• remove useless content

New Side content

• add a pkgdown website
• add cran downloads to readme