Changed show all to be show tracking and to show polyline instead of markers
Added arrows to map tracking
Fixed overdrawing the line
Merge pull request #18 from knotsoftware/polyline

Changed show all to be show tracking and to show polyline instead of markers
Fixed up fence creation issue and made changes to the db script to create inner and outer fences
Changed reminder patient_id to be object instead of string to match the others
Fixed failing test