v5.2.0-beta.7

Features

• Addon-docs: MDX function stories (#7529)
• CLI: update sb init to module format for Ember/Marko/Mithril/Rax/Riot/Svelte (#7504)
• CLI: update sb init to module format for Angular (#7502)
• CLI: update sb init to module format for React (#7500)

Bug Fixes

• Ondevice-knobs: Graceful fail on missing default (#7533)

Maintenance

• Build: Attempt to fix travis timeouts (#7531)