Merge pull request #9 from rightscale/teal_13_11_acu116230_normalize_constraints_on_solution

acu116230 - Normalize constraints when finding best bad solution.
acu120053 - Prevent dependencies on self causing indefinite backtracking.
Merge pull request #15 from rightscale/teal_13_12_acu120053_st_resolve_loop

Teal 13 12 acu120053 st resolve loop