Update to 1.6.99.2
Changes:

• Fix cross building
• Wording fixes
• Always restore credentials after extraction in preparation for bigger changes
• Improve zsh completion
• Update libucl to the latest version
• Added support for OpenBSD/Bitrig
• Add a latest fixes to kill origin usage
• Improved linux support
• More user friendly error messages
• Fixes in the solver: Treat dependencies missed as errors
• Improved regression framework
• Allow to specify repositories directly un pkg.conf under the "repositories" keyword
• All multiple version of the same package in a repository
• Fix configuration regarding ipv6