[FIX] registry: restore `elif` changed to `if` in previous commit, for better readability (no effect)

This should have no effect because when the first `if`
is entered a new registry is instantiated with
the default value for base_cache_signaling_sequence
set to 1, preventing entering the next `if` even
without `elif`.
Launchpad automatic translations update.
Launchpad automatic translations update.
[FIX] document: overridden ORM methods need to respect API idiosyncrasies, otherwise check() calls may fail
[MERGE] Forward-port of latest 7.0 bugfixes, up to rev. 5101 rev-id: odo@openerp.com-20131016105812-844cd9xljvkjwtm3