#251 initialization should complain is improper values are given

[Anonymous]

In the process of configuring my homing parameters, I managed to do this:

HOME_LATCH_VEL = .0.1

.0.1 is not a proper number. it should have complained about a parse/syntax error. instead it tells me that it search vel is non zero then latch_vel should also be non-zero.

furthermore, it didn't tell me which axis.