Upgrade Scirpus

Details https://github.com/Cirru/scirpus/releases/tag/0.6.2 .

Upgrading Scirpus

• Refine REPL details #4 .
• Upgrade Babel APIs #5 .
• Added console.copy #6 .
• Added DISPLAY_JS option #7 .
• Moving to parser written by TypeScript for performance #8 .

Switching to @babel/standalone

Details #3

• migrated to @babel/standalone. also upgraded scirpus.
• added compile sub command.
• added DISPLAY_JS=true option for displaying compiled js source.