Properly escape "<" and ">" in api-doc documentation.
Since all documentation is rendered via HTML, the characters "<" and ">" have to be HTML-quoted, otherwise strange things (omission, unintended renderings) might occur.
E.g. the sentence
Define an interface between a page and an ADP <include> similar to the page_contract.
was rendered as
Define an interface between a page and an ADP similar to the page_contract.
This fixes the following bug for Oracle: : SQL: : select locale : from ad_locales l : where language = :language : and enabled_p : !>>>!and (default_p or not exists (select 1 from ad_locales : where language = :language : and locale <> l.locale)) :