Fix directory separators when running on Windows server
Add more directory middleware tests
Merge pull request #914 from dougwilson/fix/windows-directory-separator

Fix directory separators when running on Windows server
Specify utf8 encoding in utils.md5
Merge pull request #916 from dougwilson/fix/utils-md5-encoding

Specify utf8 encoding in utils.md5
Use test/fixtures for directory tests
compress: only set vary header if the filter check is passed
Fix directory middleware to encode URI components
Merge pull request #917 from dougwilson/fix/directory-middleware-uri-escaping

Fix/directory middleware URI escaping
Merge pull request #904 from senchalabs/akamai-sucks

Only set vary header if the filter check is passed
readme: move travis button
2.9.1
Update vhost example to function

This updates the vhost example to remove all the features that have
long ago been removed and added to express.
Merge pull request #918 from dougwilson/fix/vhost-example

Update vhost example to function