Add say command

Not implemented in the script yet
Update say to --say
Add -s and minute to --say switch
Update -s option to take an array and add to messages hash
Use Hash for -s
Fix -s to accept multiple key,values
Add messages to timer creation
Raise error if wrong number of say args passed
Fix reference issues in accepting multiple messages
Add Kernel.sleep redefinition for use in tests

Update RSpec to use it
Add --notime option for use in testing output

Update cucumber test to use --notime
Merge branch 'minute-messages-switches' into develop