Add use_canonical_filename method to allow referring to output by its…

… canonical name within the artifacts directory.

Fix cuke handler. Link to basenames (without ext) in jinja handler.

Tidy up pyflakes warnings in tests.

Confirm that jirb needs IGNORE_ERRORS true.

Bump version to 0.2.7

Added tag 0.2.5 for changeset 34798752240d

Improve exception message for 404 error with remote file.

Detect strings of class unicode in ifinput handling.