Remove use of snake_case
Remove use of snake_case

Summary: some general cleanup

Reviewed By: lucasr

Differential Revision: D3886849

fbshipit-source-id: eaf3f219fe1ccb717ba363dba0d2f475ffb204e3

facebook/yoga,rmarinho/yoga,rmarinho/yoga,rmarinho/yoga,facebook/css-layout,rmarinho/yoga,yihuang/css-layout,yihuang/css-layout,rmarinho/yoga,facebook/css-layout,yihuang/css-layout,yihuang/css-layout,rmarinho/yoga,yihuang/css-layout,facebook/yoga,facebook/yoga,rmarinho/yoga,yihuang/css-layout,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,rmarinho/yoga,facebook/yoga,yihuang/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/yoga,yihuang/css-layout,rmarinho/yoga,yihuang/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,yihuang/css-layout,facebook/css-layout,rmarinho/yoga,facebook/css-layout