Add a few failsafes to UserAgent for if the upstream useragent ini file fails to load.
Add a few failsafes to UserAgent for if the upstream useragent ini file fails to load.

nicholasryan/CorePlus,nicholasryan/CorePlus,nicholasryan/CorePlus,nicholasryan/CorePlus,nicholasryan/CorePlus,nicholasryan/CorePlus,nicholasryan/CorePlus,nicholasryan/CorePlus