[boxes] introduce new boxes system
* separate box content generation from its layout
* refactor css classes to allow moving boxes and still get consistent ui
On the way to contentnavigation/boxes unification (in a later patch)
* * *
some fixes for the previous (default_new_boxes_system) patch
* * *
some fixes for the previous (default_new_boxes_system) patch
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')