Category & API tweaks

Hey there,

Two changes today for you.

Categories:
When creating a category you now have the option to add any existing ad to it. Hurray! Just makes it a little easer for everyone. Also true for editing.

Check out the documentation for more info.

API changes:
You can now request additional data for your ad object when querying the API. Hope to expand this more as time goes. These have been added to allow for more flexibility whilst keeping the initial response small. So if you need more data, you can.

Check out the documentation for more info.

— Vincent