v5.5.0

Features:

• aragon-cli: Apm info & apm packages commands (#253 by @ewingrj )
• aragon-cli: Big update to aragonCLI documentation and guides (#364 by @0xGabi )
  check them out here: https://hack.aragon.org/docs/cli-intro
• create-aragon-app: New tutorial template (#389 by @0xGabi )

Non-API (internal) changes:

• Monorepo (#325 by @0xGabi )
• Yargs 12 (#386 by @ewingrj )
• End-to-end testing setup (#390 by @0x6431346e )