Originally, I hoped that the arguments a method took would help enough
to differentiate the intent of that method. This was the case for methods
such as `getContentUri()` and `find()`. However they are a little confusing
to work with, so this change renames a bunch of methods to be more specific.
In addition, it makes some renames from app -> package which will help with
the upcoming change to add a `package` table to the database.
6c462713aa