Added tag 0.9.7 for changeset 19965a03c1d5
Bumped to 0.9.8 in preparation for next release.
Update changelog to reflect other minor changes included in the latest release
Remove unused imports
Clean up imports in package_index
Re-indent several function signatures to reduce linter warnings
Normalize whitespace in package_index.py
Replace import * with explicit imports, allowing linter to detect the missing imports reported in #53.
Add 'urlsplit' and 'urlunsplit' to compat module
Import urlsplit and urlunsplit from compat module. Fixes #53.
Make PackageIndex._vcs_split_rev_from_url a static method (as it doesn't have any instance or class references).
Add test to exercise the basic functionality of _vcs_split_rev_from_url
Update changelog