Image Annotation Tool: Double border, color borders and tag buttons
Annotation Tools: Bug fixes - tinymce bug after exiting full screen, stupid check for type, missing tag subscriptions
Annotation Tools: CSS fixes for editor
Annotations Tools: spacing and comment fixes - will be squashed
Annotation Tools: Addressing PR Comments from DB
Annotation Tool: Search happens when user hits enter
Merge pull request #5603 from lduarte1991/lduarte-harvardx-pr32

Image Annotation Tool: Border and tag-based coloring