added accessibility stuff for mini calendar
Styles for table-less recent news/upcoming events blocks.
Merge branch 'master' of github.com:ITS-UofIowa/hpc.uiowa.edu
accessibility fixes for other calendar table displays
Merge branch 'master' of github.com:ITS-UofIowa/hpc.uiowa.edu
fix mini calendar title using h3 rather than h2
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