add low level gaussian distribution support
add some interface for gaussian dist
fix printing for gaussian
fix printing for gaussian
fix error handling for extreme corner case where user defined emissions cant be normalized by current logic
allow guassian emission specification
switch numeric tracks to gaussian
refresh clean tracks to use gaussian and include repbase
add script to evaluate number of states
dont throw error if bic cant be calculated. just set to 0
oops
add bic column to ranking output
add minGaussianTail parameter to emission model to prevent 0-probs from gaussian outliers