Upgrade package_cloud from 0.2.18 to 0.2.35.
The gem isn't open source so I can't find a changelog. I've contacted the author, and have been informed that the only changes between 0.2.18 and 0.2.35 are bug fixes. Should be fully backwards compatible.
0.2.35 replaces the dependency on Colorize with Rainbow, which is an MIT gem. This allows us to continue offering Omnibus under the Apache 2.0 license.
Fixes #1448 (closed).