Added
- The `--debug` option.
Changed
- `dacreate` now creates a standard `.gitignore` file.
- `dawatchinstall` replaced with `dainstall --watch`.
- When uploading to the Playground, `dainstall --watch` uploads only
the file or files that changed, instead of uploading the whole
package. It also uses checksums to verify that the content of the
file actually changed.