can now append to existing slices (which is the the new default)

Merge pull request #6 from muir/slice-append

can now append to existing slices

expose TagSet.Tag

also: split on "" means don't split

tag.Fill can now split on tag values

Merge pull request #4 from muir/splits

can now split tag values

Tag.Fill added

Return from SplitTag now Tags instead of []Tag.

Add SplitTag

Merge pull request #2 from muir/parsetag

Parsetag

add MakeStringSetter

v0.0.2

add codecov to readme

Initial release

This is the initial release. It may also be the final release as there may be little reason to change this tiny package in the future.