Move cut branch access functions to a separate structure.
Auto-generate variable access functions.
Clean CutFlow up a bit.
Switch weights over to accessors.
Add a little verification script.
Switch MVA setup over to new variable access.
Add option to print a list of allowed variables.
Add last bit to MVA migration.
First bit of TLL configuration with the new accessors.
Remove duplicate variable accessors.
Add more error checking.
Merge branch 'branch_get_attr'

Conflicts:
	test/verify.weights
	test/verify.yield