Bump version number.
Add new data-structures for multi-param support.
Add files to build.
Clean up list subclassing.
Make QueryString subclass ParamList.
Use new list types to send requests for consumer.
Fix parse error.
Fix variable names for Param constructor.
Enhancements to List and ParamList

 * Add List.each() method and use in List and Param List
 * Add List.length() method
 * Fix constructor superclass calls.
Fix constructor superclass call.
More work to support multi-params.

 * use new list methods for iteration
 * fix request and response headers
 * ignore empty parameters
Fix param constructors in setQueryString().
Use each() to iterate in ParamList copy-constructor.
Make copy() method keep the same class for copied list.
Use each() to iterate when building form data.
In setQueryString() copy existing param lists.
Fix hasFile implementation.
Make List extend Array.

 * Use native forEach if available.
 * Update copy() to use correct constructor
 * Update concat() calls to assume a new object is returned
Handle POST strings properly. Parse token values properly.
Release 1.4.0so1.