[web session] fix '#1375582: sometime have to relogin since secure session cookie are used' by having different session cookie for http/https version. Also add application name to avoid potential pb when developping differents appls on the same port.

[migration] use eschema.type for nicer display when confirmation is asked

[base template header] changeset 6669:e4532c6acf34 introduce a visual regression on standard site, fix it by merging header-left/header-center context, it simplify things and have proper display. Cubes using 'firstcolumn' css class will have to be upgraded

[timetable view] ensure we actually have a user in the rset cell

cleanup

[c-c list] tell more about the pb when some cube information is missing

[repository] don't crash when cascading delete a relation, this may let the database in an inconsistent state anyway, so simply log the error

[ms planning] test and fix bad plannification of a query used on cascading delete of a deleted (external) entity relations

[ms] fix error in synchronisation: local_eid return a 2-uple

[ms test] fix nasty cache effect break unittest_multisources.test_not_relation since introduction of local_eid method andfor full dereferencement of external eids