Per testing on https://alpha.app.net/kosso/post/8104156, 'no' does not e not explicitly filter out posts (such as marking no for hasOEmbedPhoto [it'll still be returned in the results]), so we can return these to BOOLs.
Finish the key mapping and convert from enums to constants (strings).
Establish new defaults and add common use-case initializers.
Adds completion handler parameter and makes searchFor* method return something.
Add to main header
Add more common initializers.