Make sure different versions play nicely

[noahsark769]

We need to handle the case if somebody is using different versions of Cal-Chart at the same time on the same computer. So we may want to add some sort of versioning system to the wxConfig that we are using. Maybe a way of marking different versions in the configs?

[noahsark769]

(At least make sure unknown things can load/things can load out of order)

[rmpowell77]

Fixed in #123