* The Title::inNamespace() method discouraged use of getNamespace()
for comparison.
This was added 10 years ago in r103893 (commit 3414e91bae),
however no such "change" has been made, and the new LinkTarget
stable interface and TitleValue class contains the same getNamespace()
method, and no warning against its use.
My main reason for removing this comment is so that avoid fear
against using `in_array()` with TitleValue->getNamespace() which
this comment seems to discourage. While Title has plural
inNamespaces(), TitleValue does not. This seems fine, as one can
simply use in_array for more complex use cases where a range or
list is compared against.
* Fix Doxygen warnings about invalid or unsupported XML tags
such as `<a>`, `<siteinfo>` etc. Rephase or use backtics,.
* Fix useless IDE tooltips and Doxygen output by removing empty stubs
from method overrides that add no new information, yet obscured
the otherwise inherited parent destination which does have useful
information.
* Clarify that `renderForComment` must not be mixed with other ones.
This seems to be how it is intended. Upon realizing that, I think
this is unreasonable and should perhaps be removed. For now, I've
documented the hack that it seems to exist for.
* Consistently use imperative mood when phrasing method docs, and
consistently use a brief first line description, and
consistently separate it from other paragraphs and annotations
with one line break.
Change-Id: I7e1819a5d7124c635de84bc64d2371a122195928