Removed unused plugin

Fixed some loading issues with react-native.

Don't use local storage if it's not supported.

This was causing issues with react native.

Automatically submit heartbeats after calling setUserIdentity unless …

…passed in interval is 0. removed client.config.useSessions().

Remove useReferenceIds

fixed linting issue

rework build steps

Fixed unit test failures when fetch is undefined

Fixed umd template && log message

Fixed exceptionless#86 - unable to run npm i