1. Renamed function getRelation to oilsGetRelation.

1. Renamed function getRelation to oilsGetRelation.

2. Made oilsGetRelation() globally scoped so that qstore
can call it.

3. Renamed its formal parameter from "class" to "classdef",
since "class" is a reserved word in C++.  That can create
problems if the header file is #included in a C++ program.

4. Added a doxygen-style comment along the way.

M    Open-ILS/include/openils/oils_sql.h
M    Open-ILS/src/c-apps/oils_sql.c

git-svn-id: svn://svn.open-ils.org/ILS/trunk@16351 dcc99617-32d9-48b4-a31d-7c20da2025e4