Relationship confidence & reason

Added confidence and reason fields to relationships. Confidence ranges from 1 to 5 with scripts having the capability of setting it to be negative. If it is a negative value, it is displayed as a positive with a "scripted" icon next to it. The user must then verify it before altering it's value.

Refactored relationships_listing_row_widget.html to reduce repeated code. Cleaned up relationships table and added analyst and date to it.