This commit simplifies the exports.js plugin so it only relies on the stability notes to generate the documentation, which completely decouples it from the exportable API. As a rule of thumb, whenever something has an 'api' annotation, it should also have a 'stability' annotation. A more verbose documentation of ol3 specific annotation usage is available in the new 'apidoc/readme.md' file. This commit also modifies all source files to implement these usage suggestions.
The default template for JSDoc 3 uses: the Taffy Database library and the Underscore Template library.