Fastlane Supply, Triple-T Gradle Play Publisher, and many app stores
include the possibility to specify a website for the author, as distinct
from the website for the app.
closes#204
This just makes it easier for people writing build recipes. Rewriting will
output a list of strings as well.
The test index.xml and categories.txt are updated to include the new number
categories, and the changed CurrentVersionCode to 2147483647 (MAX_VALUE)
