[repoapi] drop get_option_value's foreid argument
repoapi was introduced in 3.19, so no need to introduce legacy
deprecated stuff at the same time.
Schema of the data
------------------
First take a look at the data schema_ then try to remember that you are browsing
through a heap of data by applying stylesheets to the results of queries. This
site is not a content management system with items placed in folders. It is an
interface to a database which applies a view to retreived data.
.. _schema: schema