Hltd 151 candidate

Changes:
* template used to set default mapping and settings when first document is indexed in appliance ES (issue #51). setupES.py script should be used to import mappings and settings before doing runs.
* elasticBand ES timeout is reduced from 60 to 20 seconts
* resolved bug #40 when multiple BU mount points used
* metarpm script can take paramcache file as command line argument
* fixed DQM mode bug where HLT exception handling was interfering with proper switchover to a new run (python or CMSSW configuration errors will be treated as a crash in this mode)
* retrying unmount after short delay if mount point was busy on a first try