Update to Normalize.css v1.1.0.
v4.1.0
Use relative paths in README

GitHub recently fixed a problem where relative paths in Markdown files
didn't behave as desired.

Fix gh-1296
Update jQuery to version 1.9.1
Recommend version-specific python server commands
Added IE10 tap highlight disable & WebKit→IE10 doc
Fix link to Pull Request help in CONTRIBUTING.md

GitHub changed their help page URLs and did not correctly redirect the
old Pull Request help URL.
Merge remote-tracking branch 'upstream/master'