add -a/--agg-scopes-file arg to specify a file that contains the list of
agg scopes:
* one line each
* a fully qualified scope ID

Example:
./get_keywords.py -x -c ~/scopes/clicks -d -a agg-scopes

Where agg-scopes file is:
com.canonical.unity-scope-nearby_unity-scope-nearby
com.canonical.scopes.photos_photos
com.canonical.scopes.news_unity-scope-news
com.canonical.scopes.dashboard_dashboard