Adding Swarm in and query node tests
Fix missing credentials error case.
Add amazon icon.
Add Amazon S3 query node.
Add fitbit node.
Google Calendar
Adding Instagram tests
Support full insert API.
Add S3 watch node.
Instagram node fixes
Merge pull request #18 from hindessm/google-calendar

Google Calendar
Merge pull request #28 from hindessm/fitbit

Fitbit node.
Merge pull request #37 from hbeeken/swarm-tests

Adding Swarm in and query node tests
Merge pull request #38 from hindessm/more-s3-nodes

More s3 nodes
Merge pull request #40 from zobalogh/instagram-test-pull-request

Instagram test and Instagram node fixes
Add dropbox query node.
Add dropbox watch node.
Make missing credential checking more consistent.
Refactoring credentials into foursquare-credentials
Adding metadata to Instagram payload