Started using grunt-cloudfront for cache invalidation (closes #276)
Added ability to disable cookies (closes #140)
Callbacks now get executed in the context of the trackerDictionary
Added public method to get user fingerprint (closes #288)
URL encoded custom contexts if base 64 encoding is disabled (fixes #299)
Added getUserFingerprint example (see #288)
Release will be in Dec
Fixed Grunt publish task definition
Made -M1 for testing