avoid use of NaN and Inf in integer initialization

doing so leads to problems in pyrms

Author: mjohnson541

src/Reaction.jl

@@ -11,7 +11,7 @@ export AbstractReaction
     products::V3
     productinds::V4
     kinetics::T
-    radicalchange::Int64 = NaN
+    radicalchange::Int64 = -100
     pairs::V5 = @SArray [@SArray [""]]
 end
 export ElementaryReaction

src/Species.jl

@@ -16,7 +16,7 @@ struct EmptySpecies <: AbstractSpecies end
     bondnum::Int64=-1
     diffusion::N = EmptyDiffusivity()
     radius::Float64 = 0.0
-    radicalelectrons::Int64 = NaN
+    radicalelectrons::Int64 = -100
 end
 export Species