Merge pull request #58 from HubSpot/v4

Bump planout.js major version to v4.0.0

bump version

Merge pull request #50 from HubSpot/prevent_interpreter_from_mutating…

…_serialization_object

Prevent the interpreter from mutating the serialization object

Only key into value to read salt if value exists (#40)

* Only key into value to read salt if value exists

* Bump version to 3.0.1

* add built version

Update CHANGELOG.md

Merge pull request #16 from HubSpot/guy_get_params_log

Add getParams as a function on the namespace class

Merge pull request #11 from HubSpot/guy_experiment_params

add experimentalParams function to the experiment class Fixes #10

argh

some additional cleanup and fixups

only log exposure when we should be logging exposure and handle local…

…Storage overrides properly