Merge pull request #79 from nstandif/master

FX Checkout System
check that locked nodes have correct animation parameter
Merge pull request #80 from jmoborn/master

check that locked nodes have correct animation parameter
check for all nodes
Merge pull request #81 from jmoborn/master

check for all nodes
baking out for snow simulation
Merge remote branch 'upstream/master'
forgot module import
fix faulty assumption
change prefix based on node name
underscore for readability
Fixed error with Checkout shot dialog.