logrus/Sirupsen Import

[Rossiar]

All import statements of "github.com/Sirupsen/logrus" cause this error for us:

case-insensitive import collision: "github.com/sirupsen/logrus" and "github.com/Sirupsen/logrus"

The repository is called https://github.com/sirupsen/logrus not Sirupsen, not sure if the name changed or what, but I am going to PR to lowercase it.

[undiabler]

You are right. There was a big confusing problem with this renamings.
There is already v3 tag with lowercase.

you can make PR with updates to master.

see #8