Update index.js

added destination (folder) support
Update README.md

updated readme to include destination
stict mode,
added timestamp to filename
add timestamp to uploaded file
enable strict mode
v bump
add callback to sync function
exit process on successful callback
Merge branch 'master' of github.com:danielmahon/node-mongodb-s3-backup (add destination pseudo-folder to S3 config file, time to backup timestamp, end process when passing binary -n "now" flag)
fix -n callback