Add initial WIP catching more c++ exceptions
Add initial WIP catching more c++ exceptions

Winterflower/khmer,F1000Research/khmer,souravsingh/khmer,Winterflower/khmer,souravsingh/khmer,F1000Research/khmer,ged-lab/khmer,ged-lab/khmer,F1000Research/khmer,Winterflower/khmer,ged-lab/khmer,souravsingh/khmer