5.2.0

Changes in this release:

• Adds autoplayLoop prop, allowing presentations on autoplay to continuously loop (thanks @nuragic)
• Add bgGradient prop to allow gradient backgrounds for slides (thanks @ElreyB)
• Add bgImageStyle for greater overall control over background image styling (thanks @DDunc)
• Add bgLighten to add opacity layer in white instead of black over background images (thanks @DDunc)
• Replace deprecated lifecycle methods (thanks @ElreyB)
• Many many many documentation updates!! Thanks in particular to @ElreyB
• Issue and PR templates! Thanks @kale-stew

Enjoy! As always, feel free to file any bugs, feature requests, or questions via our github issues, and PRs are always welcome!