remove getNextToLastElement()

getElement($oid, -2) do exactly the same.
ensure the comments string is define

we use it later to know how to collect the informations.
prepare 2.2.9902 release
Merge remote-tracking branch 'origin/master'
only activate warnings tests if needed
Merge remote-tracking branch 'forge/master'
wrap long lines
drop unused variables
add another exception