Add Yandex Metrica Provider (http://metrika.yandex.com/).
renaming crazy egg integration
New Provider: Evergage
keep a build with spinnakr around
cleaned up user and tests
added group caching to cookie and local storage
cleaned up public-facing user api
made sure traits and user id are always loaded from cookie, fixes #214
allow identify(traits, options) override, fixes #147
rename crazy egg
swash
Keen IO: changed pageview options defaults to `false`
LeadLander: changed `llactid` option to human-readable `accountId`
Intercom: make `#IntercomDefaultWidget` the default activator
update history
Merge branch 'master' into integrations
made release
added rollbar
updated group to mimic cleaned up user
updated #group to call group.identify