Correcting Non-interview survey regex, Task #3149
Support prepopulation for INS_PM_ChildBP, Task #2878
I guessed that the 'UPPER_ARM_CIRC' from the anthropometry module is
'CHILD_ANTHRO.AN_MID_UPPER_ARM_CIRC1'.
Changed NcsNavigatorCore.mdes_version.number back to 3.1: Task #3149
Made related rspec tests only run when version gets up to 3.2.