stripe-php 6.0.0

[ob-stripe]

• Drop support for PHP 5.3 (Drop support for PHP 5.3 #410)
• Use traits for common API operations (Use traits for API operations methods #411)
• Use short array syntax (Use short array syntax everywhere #414)
• Fix serialization logic (Fix parameter serialization logic #404)
• Get rid of ExternalAccount (Get rid of ExternalAccount #417)
• Add more tests (Add more tests #418)
• Update CA bundle and add script for future updates (Update CA bundle and add script for future updates #421)
• Use vendored CA bundle for all requests (Use vendored CA bundle for all requests #422)
• Automatic request retries (Automatic request retries #428)

Fixes #394, fixes #402, fixes #406.

[ob-stripe]

r? @brandur-stripe
cc @stripe/api-libraries

Alright, I think we're ready to release all these updates! \o/

You've already reviewed each PR individually, so maybe just take a quick look to make sure we've not missed anything.

[brandur-stripe]

Woot! Really excellent coordination for getting this release out the door Olivier!

I didn't do an in-depth review, but did take a quick scan of the entire diff — nothing jumped out. Go for it!