Make get_group and get_group_array not throw if the key doesn't exist.
Make get_group and get_group_array not throw if the key doesn't exist.

Nephatrine/cpptoml,vadz/cpptoml,skystrife/cpptoml,Nephatrine/cpptoml,skystrife/cpptoml,zzzworm/cpptoml,vadz/cpptoml,Payshares/cpptoml,Payshare/cpptoml