Rename of Intel Note to Note

[Bret Jordan <Bret_Jordan@symantec.com>]

All,

As we look to using the new Intel-Note object to track Activity for events and other data/notes in STIX, it has became clear that the term intel-note is probably not general enough.  We talked on slack yesterday with Allan and Jason and others about just renaming it to be a more general term called "Note". Everyone seemed to agree.  However, I just wanted to send this to the list to allow anyone that disagrees to comment.  

Bret