MobileUserAgent: Extract information from mobile browser identifier

This class parses user agent identifier strings from browsers used by mobile devices to extract relevant information.

It recognizes many of the current mobile user agent identifier strings and processes them to extract their basic constituent parts, the most important being the mobile device vendor and model.

An useful application of this class is to use the extracted information to lookup vendor and model specific device characteristics in a database, or to detect if the visiting browser uses a certain type of mobile device.

Of course you could use user agent profiles for this, but not all mobile phones have (valid) user agent profiles, especially the older types of mobile phones.

This class was already verified to work correctly with over 2000 user agent strings.