v0.2.1: Add xio.Splice

Adds xio.Splice and xio.SpliceFile for "safe" and "simple" in-place file mutations. It actually creates a temp copy that it mutates before atomically renaming it over the original file.

v0.2.0: Add package `xio`

Adds a couple of io.Reader wrappers.

v0.1.1: Add flag.MultiString

v0.1.1: Add flag.MultiString

v0.1.0: First Release

Tagging with an initial version so it can be used in other projects.