Decouple button semantics and display

[kaBeech]

Requisite for #91

Currently all <button> tags are styled to look like this:

Elements that function like buttons but look like this are other elements (like <span>'s) with styling applied:

Reverse that, so that all elements that function as <button>'s are <button>'s and buttons that look like the first picture have extra styling applied (.button class?)

Remember to make all elements that function as buttons <button> elements after this is done