minor corrections
more explicitly naming
change a comment
remove action_put as after the removal of subscribers for DM, no further action need to be done for duplicated puts
no need to insert an empty account entry for the first put, as action_add_pmid will generate the first value if it is absent
Merge branch 'MAID-315_Update_DataManager_account_rebase' into MAID_363_test_updated_DataManager_Account
catch up the change that DataManager::ActionPut has been removed
Merge branch 'MAID-315_Update_DataManager_account_rebase' into MAID_363_test_updated_DataManager_Account
catch up the change that DataManager::ActionPut has been removed