Mohawk CSS4k and CSS4k m

Cross shelf waypoints have been used for multiple deployments in the Mohawk area.

<start:waypoints>
-11943.807 3423.408
-11943.807 3421.246 
<end:waypoints>

A more focused area on the cross shelf mission was used at the end of the December 2012 deployment.

<start:waypoints>
-11943.807 3423.196
-11943.807 3422.860 
<end:waypoints>

Issues with lithium battery hrs countdown caused an abort. Arguments were added to MHKCSS4K.mi and MHKCSS4K_m.mi

sensor: m_coulomb_amphr_total(amp-hrs) 0.0 # persistant amp-hours total b_arg: remaining_charge_sample_time(sec) -1