[v3] `LocalStore__eq__`

[d-v-b]

Right now, LocalStore('tmp') == LocalStore('tmp') is False. I think this should evaluate to True; fixing it requires implementing __eq__ on LocalStore.

This would be good issue for anyone interested in working on v3 stuff.

[d-v-b]

LocalStore is in the v3 branch

[jhamman]

closed by #1792