* Html Reader Comments
See issue #2234. Html Reader processes Comment as comment, then processes it as part of cell contents. Change to only do the first. Comment Test checks that comment read by Html Reader is okay, but neglects to check the value of the cell to which the comment is attached. Added that check.
* Disconnect Worksheets
... at end of test.
There are no changes to code. Additional tests are added,
so that the following 6 items now have 100% test coverage:
- Comment
- DefinedName
- DocumentGenerator
- IOFactory
- NamedFormula
- NamedRange