Changed constructor for bounding box to accept mildly degenerate input
Changed constructor for bounding box to accept mildly degenerate input

sairajat/dealii,sairajat/dealii,sairajat/dealii,naliboff/dealii,sairajat/dealii,naliboff/dealii,sairajat/dealii,naliboff/dealii,naliboff/dealii,sairajat/dealii,naliboff/dealii,naliboff/dealii,naliboff/dealii,sairajat/dealii