Disable travis
Merge pull request #3473 from servo/disable_travis

Disable travis

Reviewed-by: SimonSapin
layout: Consider relatively positioned blocks as possible block
formatting contexts, and translate floats out of block formatting
contexts.

These improve Reddit.
Merge pull request #3475 from pcwalton/block-formatting-context-fixes

layout: Consider relatively positioned blocks as possible block

Reviewed-by: glennw
layout: Unify the block-size computation for blocks and floats.

The float code was old and did not support most of CSS 2.1. So unifying
the two paths both simplifies code and improves functionality.

Improves the Reddit sidebar.