Allow DSR values to propagagate past objectAttr* metas.

* DSR propagation used to stop at meta:objectAttr* tags.

* This patch fixes RTing of this snippet from
  en:FINA_Diving_World_Series
----------------
; a
{| {{echo|style='color:red'}}
|b
|}
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* No change in parser test results (TODO: Add more tests)

Change-Id: Ida0fdf45f1f02a89cf732538688dfa20eda5ed86
Merge "Allow DSR values to propagagate past objectAttr* metas."