update GoSquared w/ `identify` method
fixed intercom to properly set createdAt to created_at
Release 1.3.3
Updating contributing.md
contributing: segment.io -> segment.com
Merge pull request #438 from segmentio/fix/kissmetrics

Removing unnecessary temp variable
Merge pull request #433 from simontabor/gosquared-people

Update GoSquared w/ `identify` method
Release 1.3.4
deps: update duo
add segment
Typo, language fixes
add GA support for explicitly passed campaign params
Merge pull request #441 from segmentio/add/segment

add segment
Merge pull request #444 from segmentio/fix/ga-utm

adds GA support for explicitly passed campaign info
Release 1.3.5
 combination of 8 commits.
piwik: add event tracking

add tests

piwik: fix brackets in test

piwik fix tests

value fallback to revenue

add comma

fix tests

finalize tests
Integration with getblueshift.com
added fix for createdAt and created for group method, along with tests
Renaming appId to apiKey for blueshift integration
Merge pull request #446 from segmentio/fix/piwik

 combination of 8 commits.