updated the grid to handle single systems, also by loading the custom logging. then i stumbled on the following: if the .so is loaded once, and then we change and rebuild the library and load it again, it doesnt have effect. the solution to this is to give the newly built library name a random hash in its name. TODO: need to remove the contents of the custom_logging_dir each time the single or population function is done

Rewrote argument handling of population class, added export functions. Added python-c-bindings to return store and other small changes

building population code. added some grid options, loading custom logging code now works (but not yet on runing the population tho)