1 - Fix nonMoo constructor firing through multiple layers of Moo
2 - Fix bug where nonMoo is mistakenly detected given a Moo superclass
3 with no attributes (and hence no own constructor)
6 - Automatic detection on non-Moo superclasses
9 - Fix _load_module to deal with pre-existing subpackages
12 - Add explanation of Moo's existence
13 - Change @ISA setting mechanism to deal with a big in 5.10.0's get_linear_isa
14 - Change 5.10 checks to >= to not try and load MRO::Compat on 5.10.0
15 - Make 'perl -Moo' DTRT