Fix #687: strip $ when converting a string to a coordinate

[AlexeyKosov]

This is:

- [x] a bugfix
- [ ] a new feature

Checklist:

• Changes are covered by unit tests
• [x ] Code style is respected
• Commit message explains why the change is made (see https://github.com/erlang/otp/wiki/Writing-good-commit-messages)
• CHANGELOG.md contains a short summary of the change
• Documentation is updated as necessary

Why this change is needed?

Fixes #687

[PowerKiKi]

The PR checklist must be completed in order for this PR to be merged.

[PowerKiKi]

Also I see not explanation why you chose to edit columnIndexFromString instead of rangeBoundaries as I mentioned there.

[danatemple]

@PowerKiKi I have tried to strip the $ in rangeBoundaries for my instance of hitting #687, it does not solve the problem in that case. @AlexeyKosov solution solves the problem however.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
If this is still an issue for you, please try to help by debugging it further and sharing your results.
Thank you for your contributions.

[PowerKiKi]

Fixed in #1326