The imgur post doesn't seem to be working. When I inspected the http request through fiddler it shows a "Invalid API Key" response from Imgur.
It looks like the endpoint for the API is now 3 instead of 2 according to https://api.imgur.com/endpoints. I am not sure if these issues are related.
Here is the URL and headers from the request I inspected.
POST http://api.imgur.com/2/upload.xml?key=8116a978913f3cf5dfc8e1117a055056&name=20150930-1530.jpg&title=Create+Issue+-+Greenshot+JIRA HTTP/1.1
Windows 8.1 64 bit