Several oref0 profile defaults diverge from openaps/oref0

[bjornoleh]

Describe the bug
Several oref0 profile defaults diverge from openaps/oref0

One example is the default value for max_iob in profile/index.js#L11 is set to 9, and should be zero.

Please note this has no effect in Trio since it is not set identically in Trio defaults, but it should be cleaned up:

trio-oref/lib/profile/index.js

Line 11 in d1dfb70

max_iob: 9 // if max_iob is not provided, will default to zero

max_iob: 9 // if max_iob is not provided, will default to zero

The openaps/oref0 default is zero:

max_iob: 0 // if max_iob is not provided, will default to zero 

Expected behavior
Our code base should match orenaps/oref0 unless there are good reasons not to. In this case, there is no reason to divert from orenaps/oref0.