[IMP] css: moved alias specific css from kanban to base, because it is now used in form view as well as in kanban views.
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[CLEAN] web: removed mail-related CSS to the mail module.
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[MERGE] Sync with trunk
[FIX] bad handling of werkzeug's exceptions
[MERGE] Sync with trunk
[MERGE] [IMP] Alias Improvement

Web branch: removed some mail-specific CSS that is now located in the mail module.