Fixed bug that set WaveTP = 0.0 for some WaveMods, and then WaveTp was used in the denominator of an equation in Waves.f90.
Fixed bug that set WaveTP = 0.0 for some WaveMods, and then WaveTp was used in the denominator of an equation in Waves.f90.

git-svn-id: cfc30d09d6ab43f9ddfe4a0e213f902e040579f5@581 c0d87ae3-59f3-4fc3-86f6-af0122200c1e

OpenFAST/OpenFAST,OpenFAST/OpenFAST,OpenFAST/OpenFAST