Popular podcatchers

Recognize and group popular podcast clients.
UC Browser and Android stock
More Opera products
Chrome for iOS
Opera Mini 8+ for iOS
O, sorry
Merge branch 'patch-2' of https://github.com/Aeyoun/goaccess

Conflicts:
	browsers.c
Merge branch 'patch-3' of https://github.com/Aeyoun/goaccess
Merge branch 'patch-4' of https://github.com/Aeyoun/goaccess
Added Opera Mobile user agent to the list of browsers.