Fixes #61
Fixes #61

Dont use bool value in header

robinedwards/neomodel,robinedwards/neomodel,andrefsp/neomodel,cristigociu/neomodel_dh,bleib1dj/neomodel,bleib1dj/neomodel,wcooley/neomodel,pombredanne/neomodel,fpieper/neomodel