Totally rewrote the archiver package, basically from scratch. Fixed many issues and implemented many new features. The command has been renamed from archiver to arc and now has several different functions, instead of just "make" and "open" (which have also been renamed). The package is capable of traversing archives, extracting specific files, and streaming archive data without touching the file system.

See the README for a list of what is new, including examples of using the CLI and the Go package. Also check out the godoc reference for the full API documentation.