fixed: setting summary was wrong because using setter rather than getter. silly mistake.
use POST method to set data to force update presentation model on the same call
refactor: rest classes
begin with error handling
Add activity DAO
refactor: registerAulaItem in AulaWordpress main class to register the aula items (courses, topics, activities, resources and maybe more...)
protect logic when some incrementable on the presentation model is undefined or null
getters for activity arrays to use in json
activityDAO done with method to parse json when comes from the frontend
added test for Activity DAO
Activities now are saved properly.
add charge item (with childs) for aula topics