condense s3 events
remove unused parameter
Merge pull request #95 from lavelle/condense-s3

Condense S3 events
move file test
tests pass for the webdav move
move for s3
better error reporting for webdav
more concise error system
fix merge conflicts
try to fix copy
Merge pull request #93 from lavelle/move

Add support for move operation
tidy some stuff in webdav events