2.2.34: Merge pull request #426 from HSF/dev

(1) enable separate rotation logs in idds http rest service
(2) use additional storage to store dependency_map when it's too big
(3) move the task level dependency management from clerk to transformer (before the clerk will create the next transform until its previous transforms submitted. Now clerk will create all transforms at the beginning, the transformer manages to submit the transform until the previous transforms are submitted)
(4) fix duplicated inserting in contents_update table