In Database.php:

In Database.php:
* Improved function documentation and doxygen output. Wrote extensive documentation for DatabaseBase::select().
* Broke some long lines.
* Made doQuery(), makeSelectOptions(), makeInsertOptions(), makeUpdateOptions() and resultObject() protected instead of public. Fixed a caller of doQuery(), the only one I could find in core and extensions.
* In Database::query(), removed some commented-out code, and made the comment style consistent within the function.