Walkabout style missing api key

[sarahsnow1]

Description

The api key is not properly appended to tile requests and we reach MapController's L1122 IOException.

The sdk is on an old version of Walkabout (3.0.0 from Jan 19) and should probably be updated.

[sarahsnow1]

This is still an issue with Walkabout 4.0.0.

I tried using older versions of tangram (back to 0.5.0) but still see this.

@tallytalwar do you have any idea what might be causing this? One thing I noticed is that we aren't resetting global variables when switching styles- could something about walkabout be different in the way it handles globals? I am using the style switcher demo in the android sdk to reproduce this (it loads walkabout 7.0.0 locally)

It sounds like we should be setting global variables when switching styles. I will update the sdk to do that now

[tallytalwar]

Sure will check this out.