add InsideVault integration
single line some objects
make sure the library has loaded - not just the snippet
better doc
fix environment between tests so they reliably pass
try next tick for yandex
initialize yandex test
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Merge pull request #343 from segmentio/pass/tests

fix environment between tests so they reliably pass
Merge branch 'master' of https://github.com/InsideVault/analytics.js-integrations into InsideVault-master
test and merge insidevault
Merge branch 'InsideVault-master'
refactor clear-x code into modules
Merge pull request #345 from segmentio/refactor/clear-x

refactor clear-x code into modules