Simplepie unit tests time out too quickly causing false positives

Simplepie is constantly creating false-positive unit test failures due to low network timeout. We get about one failure per day on the integration server.

This is intentional for interactive scripts to prevent rss requests from blocking requests (e.g. the rss block from delaying a request), and there is an API to increase the time out of a request which can be used to prevent this situation.