Made sumq.py more robust
Made sumq.py more robust

The script sumq.py, used for calculating % contributions or dr/de and de/ee can
now handle more than 2 structures.

Furthermore, it can also handle Gaussian .logs.

ericchansen/q2mm,arosale4/q2mm,Q2MM/q2mm,Q2MM/q2mm,arosale4/q2mm,ericchansen/q2mm