correctly direct the server log stream to stdout
rework how we read intent filters about an activity; the -i option now provides a list of all filters including the action, category and data filter components
we cannot automatically determine the type of entry to look for (based on an endpoint), because PackageInfo#receivers returns ActivityInfo objects
fix a couple of bugs in the activity -i output: it could print a spurious 'None', and needs to pass the node type of 'activity'
updating the app.broadcast.info command to use the new intent filter code with the -i option
allow the IntentFilter mixin to import its own extensions, and fix the MRO errors that this causes in existing modules
add a -i option to the app.service.info command and use the IntentFilter module to list the enclosed filters
support adding multiple categories to an intent