Altered:
- The bug for Issue850 was due to an incorrect floating point
comparison.  The checks on success and failure are now done using proper
floating point comparison techniques.

Added:
- Error monitors since it made debugging this issue way easier and it is
generally good practice to notify all failures.
Altered:
IDEAS13ElementGeDetector probably should have had
supportsSynchronizedDwell() = false all along, so set it to be so.
Merge pull request #870 from acquaman/Issue850

Pull Request for - Issue850: IDEAS 13 element detector scan failing