Bump release to 2.1.0

Added:

- The restart command now accepts the `--gap/--no-gap` options.

Fixed:

- Watson is now compatible with Click 8+

Bump release to 2.0.1

Fixed:

- Ability to `edit` the current frame (#418)

Bump release to 2.0.0

Added:

- The `log` command output can now be filtered to exclude projects and
  tags via `--ignore-project` and `--ignore-tag` (#395)
- Python 3.8 support (#402)
- Python 3.9 support (#402)
- Support for the TZ environment variable to specify the local time zone
  (#391)

Changed:

- Upgrade to major arrow release 1.0.0 (#407)

Fixed:

- Zsh completion (#379)

Removed:

- Python 2.7 support (#305).
- Python 3.5 support (#407).

Bump release to 1.10.0 (#386)

Added:

- Log output order can now be controlled via the `--reverse/--no-reverse` flag
  and the `reverse_log` configuration option (#369)
- Add `--at` flag to the `start` and `restart` commands (#364).
- Add `--color` and `--no-color` flags to force output to be colored or not
  respectively (#350).

Changed:

- Require latest Arrow version 0.15.6 to support ISO week dates (#380)

Fixed:

- Make after-edit-check ensure that edited time stamps are not in the future
  (#381)

Bump release to 1.9.0

Bump release to 1.8.0 (#303)

Bump release to 1.7.0

Added:

- New `add` command (#202)
- Add lunar start time options to the `report` and `log` commands (#215)
- Aggregate reports by day (#231)
- Fish shell completion (#239)
- Add support for first day of the week configuration in reports and logs (#240)
- Python 3.7 support (#241)
- Add `start --no-gap` and `stop --at` options (#254)

Changed:

- The `edit` command now checks data consistency (#203)
- Current state saving is now improve when using Watson as a library (#214)
- Prevent calling `get_start_time_for_period` multiple times (#219)

Fixed:

- Improved support for UTF-8 with Python 2 (#211)
- Zsh completion for tags and projects with spaces in their names (#227)
- Typos in commands output (#230, #235)
- Project URL of the project in PyPI (#260)

Removed:

- Python 3.3 support (#210).

Bump release to 1.6.0

Bump release to 1.5.2

- Fix the `config` command (#158)