[cli-email] added to dispatch
[cli-email] interface
[cli-email] basic functionality
[cli-email] added verbose option
[cli-email] added bcc option
[cli-email] added directory option
[cli-email] added subject option
[cli-email] checks if utility 'mutt' is installed
[cli-diff] checkpoint: added command
[cli-diff] added dispatch
[cli-diff] simple spreadsheet functor
[cli-diff] logic to expand @file into file list
[cli-diff] netid of filepath
[cli-diff] count rows
[cli-diff] all_files_exist, will need revision for core
[cli-diff] check/assert installed, will need merge with email command
[cli-diff] the new diff
[cli-smoke] getting stated on the smoke command, really needs the others merged
[cli-smoke] ensuring .ml suffix
[cli-smoke] abstracted the 'is_valid_test' fn for smoke