bump up version to 0.7.0 (#31)

The minor version is bumped because we are introducing a new API to change auto_padding. This is not a breaking change though.

bump up verison to 0.6.5 (#25)

bump up version (#20)

bump up version (#18)

add keyword and category (#15)

fix a typo (#14)

bump up version to 0.6.0 (#13)

bump up to version 0.5.0 (#11)

bump up to 0.4.0 (#9)

bump up version to 0.3.0 (#6)