add preact support
refactor track function
add load-script and remove trait check
add optional revenue trackable property
added group method
better commenting
Bumping version, merging #134
Bumping snapengage test life
adding license
merged master into group
added first stab at optimizely integration
added identify method to snapengage
moving user_hash to userHash and no longer mixing in options.Intercom into the entire object
Merge branch 'master' of https://github.com/segmentio/analytics.js
build with intercom updates
updating history and bump version to 0.10.2
merged optimizely provider in
fixing optimizely integration
swap optimizely replay to use next tick
update core analytics.js