Position word finder, Annotation drawing, etc

- Add header with brief explain on how to use
- Gil Scott-Heron text
- Neighbor margin out of CSS
- CSS for showing selected Annotations and Annotation Types
- Demo colors
- Demo templates for list-group-items
- Various profiler optimizations
- <p> stopProps saftey checks
- Preserving annotations which may have been recolored or damaged during span selection of other in progress annotation
- <p> mouse down for finding closest
- <p> mousemove limits and bounding box exclusion for large side selection dragging