3.0.2 is a minor update to modernize some backend code and fix a few small bugs.
- updated to use the iOS 10 SDK
- fix an issue that could cause a ReST error on an empty node search
- change the "demo" URL to https to avoid weird redirects
- when checking the OpenNMS server setting, retry once before trying other URLs
- when checking the OpenNMS server setting, fix a bug when trying '/opennms/' on HTTPS