Wrong analysis if TM can not be reached during analysis

If opentm2 can not be reached at some point in the analysis process anymore, translate5 notes this in the task log - but the created analysis is wrong. The segments, that can not be analyses are simply not part of the analysis total counts.

If the analysing process fails at some point it must be ensured, that the total analysis data is deleted and a message about this is logged as error.