Remove unused Cat X licenses (#421)

* Exclude unnecessary Cat X licenses where possible.

Remove unused Cat X licenses (#421)

* Exclude unnecessary Cat X licenses where possible.

Update version to 0.8.0-incubating (prep for rc1)

[BUILD] Update version for 0.7.1-incubating

[BUILD] Update version for 0.7.0-incubating

[BUILD] Update version for 0.7.0-incubating

[BUILD] Update version for 0.7.0-incubating

[BUILD] Update version for 0.7.0-incubating

[BUILD] Update version for 0.7.0-incubating

[BUILD] Update version for 0.6.0-incubating rc2.