Fix revision sorting for in-progress builds using `rev_time` instead of `rev` - where `rev` would also fail when using non-Subversion repository. Thanks to the ever elusive 'anonymous' for report and patch. Closes #636.

[egg_info]
tag_build = dev
tag_svn_revision = true

[unittest]
xml_output = build/test-results.xml
coverage_summary = build/test-coverage.txt
coverage_dir = build/coverage