Merged r12407 from trunk to 2.4-stable (#15688)

Spanish translation updated by Borja Campina.

git-svn-id: http://svn.redmine.org/redmine/branches/2.4-stable@12410 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r12408 from trunk to 2.4-stable (#15696)

Russian translation updated by Alex Stein.

git-svn-id: http://svn.redmine.org/redmine/branches/2.4-stable@12411 e93f8b46-1217-0410-a6f0-8f06a7374b81