Syntax:  term [channel] [operation] [parameters]
Example: term #feds add user user is the source of all problems
Handles terms for channels, if the channel is omitted, global terms are handled.
Following operations are supported:
add             [term] [description]     Adds a term
del             [term]                   Deletes a term, up to 6 terms can be specified
get             [term]                   Gets a specific term
find            [pattern]                Returns the first term matching the pattern
list            [pattern]                Lists all term names
listfull                                 Lists all terms with their descriptions
Command '?' is available to all users and is the same as term [channel] find.