history: updated runTime from engine db

updated context.runTime to get timstmp from engine
db instead of history db, so when on that when
the dbs are on seperate hosts the update date and
delete date when a record is deleted will be in
engine db time as all other records.

Change-Id: I117324fcd5b961e83cb3491f8678c9a856754985
Bug-Url: https://bugzilla.redhat.com/1133608
Signed-off-by: Shirly Radco <sradco@redhat.com>