Changed #persist to persist on page refresh. Added serialize/deserialize.

Modified the behavior of FormPersistence#persist to persist form data across page refresh and clear stored data upon submission by default. Added option to save upon submission instead of clear. Changed behavior to call load in persist to eliminate the need to call both. Added valueFunctions parameter to persist to support this change.

Added FormPersistence#serialize and FormPersistence#deserialize to support saving form in locations other than local storage such as a server.

Known issue: incompatible with Microsoft Edge versions <=17 (before Nov. 2018) and Internet Explorer.

Initial release.

Support for input, textarea, and select tags both inside and outside forms.

Skips password inputs for security, file inputs due to existing security measures.