0.3.3rc1

version 0.3.3rc1 (#127)



* remove boost version constrain in environment.yml

* sets ref_effector as optional in model_factory

* fixes #120

* fixes uncaught bug in find_IHs

* refactored solver 

* new topo_changed attribute

* Bug fixes with solver decorators, history refactoring

* reindroduced segment assignement after IH