Caw

Bug fixes

- `caw --address url1... download url2...` discrepancy resolved https://github.com/FNNDSC/caw/issues/11
- `caw logout` does not crash if already logged out 5da61314d76fd71321730f8270fab7207b8091a4
- `caw upload folder/` upload of nested files fixed a7d4645698f0893054ea96ef561be5a152ac1a67
- `caw upload ...` printing of feed URL fixed 5dfe31a24bbbbb8e33ce7f404cd4d9e7edc9d8c4

Fixed a bug where the saved CUBE address would not be used if the logged in user is `chris:chris1234`.

- DAG scheduling bug fixed
- `caw upload` now always prints the feed URL

New Features

- Friendly error message when download URL is incorrect