Flush out remaining location mixin specs
Add specs for various omega/common modules
Flush out Motel::Location specs (now completely tested)
Flush out movement strategy specs & mixin specs

Implements outstanding specs for most of these motel modules &
classes. Only remaining strategies to be tested are towards
and figure8.

Also adds a 'movement' module to the motel specs meant for
movement integration tests (with a few initial examples)