Fix the version identifier for the Enabler app.
Ignore generated Android assets.
Allow whitespace in incoming JSON messages.

Fixes receiving data from the openxc-vehicle-simulator.
Merge remote-tracking branch 'origin' into next

Conflicts:
	enabler/AndroidManifest.xml
Merge branch 'master' into next
Update changelog.
Update package versions for release.
Update to 5.3.2 for release.
Update to next dev version.
Don't bother uploading to sonatype maven repo.

It's not widely used and it makes deployment really, really complicated.
Plus it's just not working right now (the staging repo never shows up)
and I don't feel like debugging it.