Bump minor version

Since this is pre-1.0 we simply bump the minor version because any
consumer should really not have been using the anymap crate via this
crate.

Bump version to 0.5.0

Bump version to v0.4.1

Bump version to v0.4.0

Bump version to v0.3.2

Bump version to v0.3.1

Bump version to v0.3.0

Bump version to v0.2.0

Bump to version v0.1.3

Bump to version v0.1.2