Subject: Mortality
Name: Erin Smith-Mateja
Date: 10/16/15
Variants affected: PN, WC, OP

Description: Fixed a floating point exception error in mort.f. If there are no trees to calculate SDI,
the calculation no longer attempt to divide by zero. 

Impact on users: Fixes a floating point exception error.

Files:
wc/src
  morts.f
op/src
  morts.f