rename welcome to getting started

BS3 commit 25b6df9
Update getting started page

BS3 commit 7fa6ae5
fix broken buttons on css docs

BS3 commit 88a4712
Make icons antialiased on Webkit browsers.

BS3 commit 4a03d45
fix some broke buttons on the js page

BS3 commit d5e6bbb
add {{ site.baseurl }}
Make the border-radius on input-groups to be overrides instead of resets on every size.

BS3 commit 9716b73