method itself passed in instead of array
free memory
recombinations
cleanup tree nodes
free column names from vcf
free up sample names and tree stats
stats sample name free
free up the root sequence which isn't used for anything
close files and free small memory
reduce the recombination memory and don't free at the end because theres a seg fault that needs attention
don't reallocate memory causes an error
realloc the recombintation array after use
reduce memory usage
Merge pull request #80 from andrewjpage/master

reduce memory usage and fix seg fault