[FIX] Search: User pref independent and only srredirects on < 1.23

The search is independent of the user preferences, so they by
default always return from namespace 0.

In 1.23 the parameter 'srredirect' for 'list=search' was removed
because it always return redirects.

Change-Id: I7a9ad89a95ecd611acaca61b1604f95d3f000615
Merge "[FIX] Search: User pref independent and only srredirects on < 1.23"