Task chain batch announce

This is to modify how that announcement : 
https://hypernews.cern.ch/HyperNews/CMS/get/dataopsrequests/5546.html
would be made.
 The subject will read : 
"[McM] New Summer12, Summer12DR53X production, batch 1"

and the text will read
"Dear Data Operation Team,

may you please consider the following batch number 1 of 2 requests for the campaigns Summer12, Summer12DR53X:

 * HIG-Summer12-02258 (PYTHIA6_Tauola_nMSSM_bba1_tautau_m55_FilterMuOrEle15_8TeV) -> pdmvserv_task_HIG-Summer12-02258__v1_T_140904_202923_8219

 * HIG-Summer12DR53X-02117 (PYTHIA6_Tauola_nMSSM_bba1_tautau_m55_FilterMuOrEle15_8TeV) -> pdmvserv_task_HIG-Summer12-02258__v1_T_140904_202923_8219

For a total of 299,999 events

Link to the batch:
https://cms-pdmv-int.cern.ch/mcm//batches?prepid=Task_Summer12-00001 

Additional comments for this batch:
This is the test workflow for task chain.

McM Announcing service"