allow pusher for pitch strategy to be turned off by setting thrust scal param to zero
allow pusher for pitch strategy to be turned off by setting thrust scal param to zero

acfloria/Firmware,jlecoeur/Firmware,krbeverx/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,PX4/Firmware,PX4/Firmware,mcgill-robotics/Firmware,acfloria/Firmware,Aerotenna/Firmware,PX4/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,jlecoeur/Firmware,PX4/Firmware,Aerotenna/Firmware,PX4/Firmware,acfloria/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,darknight-007/Firmware,krbeverx/Firmware,jlecoeur/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,darknight-007/Firmware,krbeverx/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,mje-nz/PX4-Firmware,dagar/Firmware,dagar/Firmware,PX4/Firmware,dagar/Firmware,jlecoeur/Firmware,Aerotenna/Firmware,acfloria/Firmware,krbeverx/Firmware,Aerotenna/Firmware,darknight-007/Firmware,krbeverx/Firmware,jlecoeur/Firmware,krbeverx/Firmware,Aerotenna/Firmware,dagar/Firmware,krbeverx/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,darknight-007/Firmware,acfloria/Firmware,dagar/Firmware,jlecoeur/Firmware,darknight-007/Firmware