Handle case when pair has two gateways
Set issuer explicitly when changing currencies
Show loading while waiting for order book data
Merge pull request #873 from stellar/order-book-loading

Order book loading
Add space between gateway and currency name
Merge pull request #888 from stellar/display-both-gateways

Handle case when pair has two gateways
Recognize & process action links on state changes
User bootstrap drop downs for issuer selection
Don't try fetch currencies if the domain is empty