Use v2 issues on tracker show page
Split new API calls into own function

And just use CORS, we are not in IE 9
WIP switching over to consume new issues endpoint format
Show issue author picture if available
Load issue comments from new api
Show correct comments for an issue

One character can change a lot...
We want the tracker display name in the breadcrumb
Keep language consistent: use bounty_claims, not claims
Call v2 api properly