* You can handle lightbox initiation yourself
* Handle hpp response manually via callback instead of fire & forget post to merchant url
* UMD-ify the modules, for use with webpack/browserify/etc

+ Strip `null` from hpp json
+ normalise whitespace
+ add index.js entry point for npm

…t()` behaviour

At some display resolutions, changes in iframe contents (e.g. validation errors/scrollbars), can receive multiple resize messages getting taller & narrower, until it's 0px wide

…nsions (e.g. lastpass)