sql.py: get_cur_query(): Also accept input params to combine with input_query, and pass input params when get_cur_query() is called

sql.py: DbConn.run_query(): Pass input query to get_cur_query()

sql.py: get_cur_query() and _add_cursor_info(): Support input_query param that will be used if the raw query is None. Pass input_query in DbConn.execute().

sql.py: DbConn.run_query(): Check that query != None

bin/map: out_is_db: Only rollback() and close() out_db if it was connected

sql.py: DbConn: Added connected()

sql.py: Wrapped calls to get_cur_query() that are used as strings in str(), because get_cur_query() can return None

sql.py: next_version(): Versions start from 1, because first existing name was version 0

put_table(): Use short name for temp_suffix now that version # will be added if needed

sql.py: mk_select(): Parse join columns for literal values and table-scoped names as well