Capitalise names in features and remove quotes
Indent txt step case statements less deeply
Remove unused step
Remove irrelevant steps in timestamp acceptance test
Expand and distribute shorthand response names to appropriate steps
Remove unused step helper
Rename helper step that confirms outgoing txts
Make steps that verify messages not being sent actually work
Add lang command to allow subscriber to set their language

Progress toward #2
Respond with list of available languages if no language given in language command

Progress toward #2