update composer.json add require evernote lib

update composer.json add require evernote lib
Update UserAttribute.php

add evernote api function
Create EvernoteHandler.php

add evernote handler class
add sis & pm server

add sis & pm server
Update User.php

update userExists to normal function
Update README.md
Update EvernoteHandler.php

load app key & secret from config file
add config folder with evernote app config
reduce the configration dependency on the API server side for class EvernoteHandler
Update Record.php to fix the reference to the Exception Class