Add url support

This allows go give an url of the type:
redis://user:password@server:port/dbname to configure the connection.
Try to not install older redis module, if theres is a newer one (e.g. 0.8.x)
remove console.log
added repository field to package.json
Merge pull request #85 from fredr/master

added repository field to package.json
[fix] package.json proper repo url, errors url
[feature] Unit tests ready for travis
Merge pull request #87 from vodolaz095/master

Package.json fixes
update redis to 0.9.0
lazy load redis. fixes #56
version bump
release 1.4.6
fix url.auth problem
- adding documentation for  config option
merge conflicts for pull request #98
Merge pull request #100 from crossman/master

Adding documentation for url option
update redis to 0.10.x
Merge branch 'master' of https://github.com/visionmedia/connect-redis
add express 4.x support
version bump