made play button keyboard focusable
updating HTML content and class/title of button on slideshow state change
add event handler for Enter key to allow play/pause via keyboard
adding ARIA role and data attributes to button to control screen reader and title text
converted spaces to tabs
added aria role and data attributes to previous/next buttons
change the name of the data-* attributes on the play/pause and prev/next buttons
added helper function for detecting enter keypress
switched to helper method for detecting enter key and added enter key detection for previous/next buttons
added keyboard navigation and screen reader text for pagination buttons
corrected aria-role attribute to role
changed slide title to div as there is no inherent reason to make it a heading
changed slide title to div as there is no inherent reason to make it a heading
moved navigational buttons after slides so the slide content gets read first by screen readers
added classes for slide title and description
adding rules for screen reader text styles
converted indentation to tabs
Merge pull request #2 from bensashi/accessibility-improvements-pull-request

Accessibility improvements pull request