Roger's suggested changes to PR template

These are ideas Roger had for the template. I'll let him elaborate but I think the gist of it is that more people are checking against the Jira, and ensuring we're not blocked waiting for IPs to complete code review before merging.
You're right, waiting for an IP is not practical when we need to push something through. That doesn't mean we need to tell them we won't wait for them, if it's important / urgent we can just tick the boxes and merge it. 

The checkboxes are anonymous :)