[BACKLOG-834] - Regression: impossible to Import Metadata data source with back/forward slash in Domain ID.
[BACKLOG-834] - Updating unit tests to reflect real illegal character list. This shows that the regular expression logic correctly identifies the list and removes / and retains \t and \n.
Merge pull request #567 from brendan-lynch/master

[BACKLOG-834] - Regression: impossible to Import Metadata data source wi...