Merge pull request microsoft#185 from Microsoft/dev

1.5 Release Dev

Fixed crash on image directory load

Update README.md

fixed spacing issue

Added file pickers to export flow to minimize typing

bad merge fixes part 1

Merge pull request microsoft#118 from CatalystCode/exportFix

Added Features

Merge pull request microsoft#105 from CatalystCode/yolo_ui

Object Detection Modular Support
- Organized Code
- Added modular support for additional object detection algorithms including YOLO
- Added some UI improvements for the home page and tagging job configuration plage

Added dots at line ends

Update README.md