Merge pull request #466 from sharetribe/buy-view

Buy view
change s3 resource url from path-style to domain-style to support EU buckets
Cucumber testing Do's and Dont's
Merge pull request #468 from sharetribe/cucumber-do-dont

Cucumber testing Do's and Dont's
Update cucumber-do-dont.md
leave custom stylesheet in custom dir. make path to fontawesome absolute
Bucket creating to own method
Merge pull request #471 from sharetribe/s3-css

Move bucket creation code to own method
Listing visibility
Split to visible? and authorized?
Merge pull request #472 from sharetribe/private-community-listings

Listing visibility
Add find merchant to braintree script
Update merchant details
Listings visible for private community members
Fix tests with hardcoded dates
Change state machine to include preauthorize state
Listing can be now preauthorized

- But not yet accepted
Preauthorized transaction can be now accepted
Several improvements
Start tests