Fixes typo in index.js vhost example
Improved variable names and updated comments for better clarity of example
Allow multiple call concatenation for res.links. Fixes #1683
Fix the links test so it resets the header for each test.
update connect
Release 3.4.0
Merge pull request #1746 from sorribas/master

Allow multiple call concatenation for res.links.
refactor res.links()
Merge pull request #1729 from patelatharva/patch-1

Improved variable names and updated comments for better clarity of example
Merge pull request #1659 from dresende/patch-1

Fixes typo in index.js vhost example
res.format() now includes charset. Fixes #1744
Minor refactor of res.format
Merge pull request #1747 from sorribas/master

res.format() now includes charset.
refactor res.format() with a little ocd