Bump to v1.8.1

Update copyright, bump to v1.8

Bump to v1.7

Bump to v1.6

Use session cookie (v1.5) (bitbybyte#29)

- Add -c/--cookie
- Remove email and password login, exit with error if -c not provided
- Closes bitbybyte#28

Bump to v1.4.3

Bump to v1.4.2

Bump to v1.4.1

Bump to v1.3.3

Bump to v1.3.1