[FIX] Calendar days bar visible under the search menu.--fixes:lp1095246
[FIX] Fixed calendar instead of ul of searchvox.
[ADD] re-introduce 'is set' and 'is not set' operators which were added to 6.1 but never ported to 7.0
[FIX] wrong object accessed leading to incorrect show/hide of things
[IMP] move domain section and label to ExtendedSearchProposition.Field

Simplifies and linearizes control flow
[FIX] calendar CSS so it does not 'go through' the search view's completion list
[FIX] re-introduce is_set and is_not_set operators in advanced search
Launchpad automatic translations update.