Bump version

Recompile for 1.4.0

Fix retry bug

Conflicts:
	build/js/messenger.min.js
	index.html

Version 1.3.4 Release

Fix bug in how handlers are called

Conflicts:
	build/js/messenger.min.js

Update build format to not include dates

Fix error with underscore when messenger is used without shims

Add bower.json

Update changelog for 1.2.3

Merge pull request HubSpot#27 from HubSpot/develop

1.2.0