Switched upstream to freight-team releases.

New features

• support multiple GPG keys for signing Release file
• add Date/Valid-Util release Packages fields for apt 1.1 compatibility
• support .orig.xz and .debian.tar.xz source files
• French documentation linked in README
• add freight-clear-cache man page
• add Fedora/EPEL package installation instructions
• add a test suite and Travis CI integration

Changes

• change project URLs and references to freight-team
• freight-add temporary directories now have a freight. prefix
• Makefile directory creation improved

Bug fixes

• fix SHA field labels in release file for apt 1.1 compatibility
• fix misleading freight-add message when VARLIB is not writeable (#48)
• fix apt errors with empty values in package control fields (#53)
• raise error when config file supplied via -c does not exist (#54)