[ticket/12735] Remove all :link, :visited, :active states

PHPBB3-12735
[ticket/12735] Undo selector rename

PHPBB3-12735
[ticket/12735] Remove underlines by default

PHPBB3-12735
[ticket/12735] Fix some color incosistencies

PHPBB3-12735
[ticket/12732] Undo search-box change

PHPBB3-12735
[ticket/12735] Fix line breaks

PHPBB3-12735
[ticket/12735] Remove unnecessary span

PHPBB3-12735
Merge remote-tracking branch 'hanakin/ticket/12735' into develop-ascraeus

* hanakin/ticket/12735:
  [ticket/12735] Remove unnecessary span
  [ticket/12735] Fix line breaks
  [ticket/12732] Undo search-box change
  [ticket/12735] Fix some color incosistencies
  [ticket/12735] Remove underlines by default
  [ticket/12735] Undo selector rename
  [ticket/12735] Remove all :link, :visited, :active states