plugin-boilerplate branch: none of the API stuff works

[aschweigert]

using the plugin boilerplate branch basically none of this works and i'm not sure how to make it work: https://github.com/INN/doubleclick-for-wp/blob/master/docs/Developer-API.md

[aschweigert]

partial fix in 48ebd3a

Still needs:

• backward compatibility
• some way to get a place_ads() function that will actually do the thing
• updated docs

[benlk]

PR containing this work: #64