Bump to version 1.8.0 (33)

Bump to v1.7.2

Bump to v1.7.1

Update README.md

Bump version to 1.7.0b

Bump version to 1.7.0a

Bump to 1.6.2 (27)

Bump to 1.6.1 (26)

Bump to 1.6.0

Update send icon in sharing activity