Added memos

- Aphelion will now remember short pieces of text to repeat to a user
next time they join any channel that Aphelion is on.
- Added arguments to aliases
- Aliases now require flags to create and remove
- Giving all flags to a user now only announces if it has given a new
flag.
- Fixed unalias using backwards parameters for hasAlias
- You will have to delete your user data files after this update since
Aphelion now uses a new format.