v2021-05-18.0

• Update generateLevelImages for new url
• Fix isNotStartedLevel
• [P5Lab] Rename redux modules
• Update preview to beta and assignable to preview for published states
• DTS (Levelbuilder > Staging) [robo-dts]
• Allow variable speed in maze
• Add review_state to teacher_feedbacks
• Set Redshift maintenance window to a timeslot that doesn't conflict with daily import
• Update “Beyond K-12” card to link to /beyond
• Fixed undefined value in Javalab mini app
• add painter spritesheets to neighborhood assets
• Javalab: add neighborhood
• Stage to Lesson: More random name updates
• Update urls in external, multi and match levels to new url pattern
• More stage to lesson clean up
• Add logic to show display_name for bubble choice levels
• Make publishing courses easier for editors
• Rename stage to lesson in teacher scores code
• Fix a couple haml files that have end_of_stage
• Move Course Edit Page over to the new saving system
• [AiLab] bump ml-playground version to 0.0.29
• [Google Blockly][Outbreak] Set up Outbreak level to work with Google Blockly
• AiLab: Dynamic Instructions get overlay & Markdown
• Add an empty unit for CSD 7 - the new ai ml unit
• Add Bootstrap Tooltips to Vocabulary Definitions
• Interpret Neighborhood commands from javabuilder
• Add Paraguay Educa to i18n workshop...
• PR 40631
• Add 450 to the calendar weekly minutes options
• Javalab: add serialized_maze property
• Update Zendesk config to send CSF tickets to a different Slack room