Proper use of <a> and <button>

[xi]

We almost never use a <button> element and often have <a> elements without a proper href attribute. This should be fixed:

• Links (used for navigation) should use the <a> element with a proper href.
• We will have to change our current practice of using goToCameFrom(fallback) in a click handler
• Buttons (used to trigger actions) should use the <button> element.

Reference: http://formidable.com/blog/2014/05/08/anchors-buttons-and-accessibility/

[der-john]

Won't be changed.