Revert "Merge branch 'kmike/urls-are-bytes'"

This reverts commit 3cac734843651e23f0d1df4c23a72254afde8ca8, reversing
changes made to eac3138f09da247edaa42f5eb3c3b37404006aef.
run tests with pytest instead of nose
Bump version: 1.9.0 → 1.10.0
move tests to project root