Guide view: Remove onNewIntent Log call
Remove awkward mContext use
Prepare for TeardownsActivity abstraction

This moves and renames TeardownsActivity to GuideListActivity which will
be a generic guide list activity that can be used to display an
arbitrary list of guides.
Abstract guide list activity
Add Featured Guides top level view

The logo might need to be chagned because it's very similar to the
"Favorite Guides" logo but other than that it's working!