All nodes from vanilla + XPMS are now checked.

They're only saved if they vary from the default of 1.0. Now any node that is changed by RaceMenu or any other plugin will be restored when the character is loaded.
Fixed wrong serialization version being written to the file.
Added message to explain why a hangout setting failed.

This is not actually a fix, just a way to confirm to the user that the operation failed. Hangout overhaul is already scheduled for the feature release. See #56.
Readme updates
Merge branch 'master' of https://github.com/Verteiron/FamiliarFaces