adds algorithm header for random_shuffle

updates version

adds numeric include for iota

Merge pull request #32 from lacava/pipeline_fix

Pipeline fix

Merge pull request #23 from lacava/lexicase_survival

adds lex_size flag to do size-mediated parent selection in epsilon lexicase survival.

updates version to 43b

converts parent selection weights via sofmax

updates readme

adds support for operator specification. softmax transform of parent …

…pressure.

fixes bug in variation for ml_type variable