Bump rails, mongoid and state_machines-mongoid #415

Job	Run time
Lint Ruby / Run RuboCop	32s
Lint JavaScript / Run Standardx	10s
Lint SCSS / Run Stylelint	11s
Security Analysis / Run Brakeman	36s
Test JavaScript / Run Jasmine	51s
Test Ruby / Run RSpec	1m 11s
	3m 31s

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