AgModel v.0.6

v0.5 to v0.6

Removed HunterGathererRatio (allows this to be an emergent property)
Added Gaussian filter to diet breadth logic
Added randomization of prey encounter number
Added Gaussian filter to coevolutionary selection and diffusion rates
Created ODD protocol documentation for the model

v0.4 to v0.5

Updated variable names for readability

v0.3 to v0.4

upgraded to Python 3
changes to GUI and interaction
selection is now balanced against diffusion in utilized patches.
diffusion is now density dependent, so that it reduces as the percentage of domestic phenotype in the ecosystem increases.
added docstrings to classes and functions (no functional changes)