restore go.mod

Merge pull request #107 from gdbc/master

Support overriding default prefix, #, in Map keys  - SetGlobalKeyMapP…

update docs

Per issue #98 - recover issue #38 patch

Return EOF no nil on end of file in ReadByte.

Per issue #98 - recover issue #38 patch

Return EOF no nil on end of file in ReadByte.

Update xml.go

fix issue96

address issue #90, part b

issue #90 - part 1

issue #89

Cleanup XmlCheckIsValid code and test