* Applied patch submitted by Carlos Zuniga

The form:options and form:radiobuttons tags will now render a set of options automatically if the bind target is an Enum and items are not otherwise specified.  The values of the enum are converted into form inputs where by default the form value is the enum's name() and the form label is the enum's toString().

EL container integration; support for contextual objects; removal of deprecated Spring 2.0 functionality; Java 5 code style

Moving spring.tld and spring-form.tld under /src/main/resources/META-INF so they can be automatically discovered by the servlet container.

Any HTTP method passed to the spring-form:form tag other then GET or POST will automatically be defaulted to POST on the form tag and a hidden input field is created with the requested HTTP method.  By default, the hidden field is named '_method', the name can be overridden using the methodParam attribute on the spring-form:form tag.