Added printing of homology stats
Merge branch 'homology-data' into prog-synth-benchmarks

Conflicts:
	src/clojush/util.clj
Added homology printing to Replace Space With Newline problem
Changed homology sampling to divide by longer program's size
Merge branch 'homology-data' into prog-synth-benchmarks
For Word Stats problem, lowered population size and number of training cases