feat(tabs): pagination of tabs
docs(): fix scrolling, make ripple more peformant
fix(content): remove height rule
docs(): disable first tab demo for now due to css bugs
docs(sidemenu): make sidebar nav scroll

Closes #181
feat(tabs): pagination WIP
docs(material-checkbox): Accessible from keyboard
docs(material-checkbox): Accessibility of checkbox
docs(material-checkbox): Add a11y documentation
docs(material-checkbox): Add Lookups config
docs(material-checkbox): Disabled checked style