Offline tutorial: sorting tracks for selecting by highest bandwidth is incorrect in the code sample

[gigon]

Have you read the FAQ and checked for duplicate open issues?: Yes

What version of Shaka Player are you using?: v2.5.0-beta-master

Can you reproduce the issue with our latest release version?: yes

Can you reproduce the issue with the latest code from master?: yes

Are you using the demo app or your own custom app?: n/a

If custom app, can you reproduce the issue using our demo app?: n/a

What browser and OS are you using?: Chrome/Windows 10

What are the manifest and license server URIs?: https://storage.googleapis.com/shaka-demo-assets/angel-one/dash.mpd

What did you do?
Modified a bit the sample code from the Offline tutorial, to select the lowest bandwidth track.
You can see an example here: https://jsbin.com/tejutojuvu/2/edit?html,js,console,output
(download the asset to see the issue).

I logged to the console the correct sorting (bandwidths sorted from
189957 to 1544182), as opposed to the current wrong one (bandwidths run from
863227 to 1544182).

What did you expect to happen?

1. Expected to be able to select the highest or lowest bandwidth track.
2. Expected to see in the log the selected track bandwidth

What actually happened?
Got tracks sorted by lexicographic rather than numeric order
Saw in the log [object object] instead of selected track's bandwidth.

[joeyparrish]

Thank you for catching this!

[joeyparrish]

Fix cherry-picked to v2.4.5.