Docassemblecli

Fixed
- Ignore temporary files created by the vi editor.
- Fix issue introduced in previous version that prevented the initial
upload.

Fixed
- Avoid problem where a delete event and a modification event come in
at the same moment.
- More regular expressions for avoiding temporary files.

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.

Fixed
- Added `packaging` as a dependency.

Changed
- When deciding whether to restart, look at dependencies.

Fixed
- Bug in a line that raised an exception.