Add a save() convenience method to InstanceUser
Add a save() convenience method to InstanceUser

For the same reasons that it exists on User

recklessromeo/otm-core,clever-crow-consulting/otm-core,clever-crow-consulting/otm-core,clever-crow-consulting/otm-core,maurizi/otm-core,maurizi/otm-core,RickMohr/otm-core,recklessromeo/otm-core,recklessromeo/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,RickMohr/otm-core,RickMohr/otm-core,maurizi/otm-core,maurizi/otm-core,recklessromeo/otm-core