LP1937294: Fix metarecord master record choice predictability issue

LP1937294: Fix metarecord master record choice predictability issue

The metabib master record was being chosen using indeterminant code.
In the case of a quality tie, which record would be chosen depends on
the order that they were returned from the database.  This commit adds
an additional order by on the biblio.record_entry.id to ensure that
the best matching record with the lowest id is chosen.

The live_t/lp1145213_test_func_asset.merge_record_assets.pg tests are
also adjusted to take this into account and should now pass on all Pg
versions and regardless of the order that the data is inserted.

Signed-off-by: Jason Stephenson <jason@sigio.com>