OCD suffer has fixed a grammar error
fix(sidenav): click swallowing bug. Fixes #102
Merge pull request #101 from LuoHaojing/patch-1

OCD suffer has fixed a grammar error
fix(sidenav): bad pointer events selector. Fixes #92
fix(ink) - ink ripple now uses `$$raF` to request/cancel animation frames.
feat(layout): layout attrs and reorganize flexbox

Added layout attributes, reorganized flexbox mixins and removed
unnecessary `box-sizing: border-box`.
fix(ink) - tab selection and ink ripple effects no longer respond to right-clicks or ctrl-key, left clicks.
refactor(layout): main/cross axis attributes
feat(table): basic table css
fix(button): text-decoration:none for anchor tags
docs(layout): layout examples and docs
style(type): add variables and css, add normalize css, small demo css changes