Results 2 issues of Shawna

Despite what https://docs.atlassian.com/jira/REST/latest/#d2e2783 claims, a successful POST to issueLink returns a 201, not a 200. The issueLink function is looking for a 200 response to declare success.

I believe that the fix for all here: https://github.com/kriszyp/promised-io/commit/0a3d16dcde0516489d9a8651cd42b5668a9b7b74 just needs to be applied to allKeys, too.