extension of HTML::Template with plugin support

 By overriding the 'param' and 'output' methods from HTML::Template,
 HTML::Template::Pluggable provides support for HTML::Template plugins.
 .
 HTML::Template::Plugin::Dot adds support for the magic dot notation to
 HTML::Template. Thus objects can be supplied to the template via the 'param'
 method and object methods can be accessed in the template.
 .
 HTML::Template::Plugin::Dot::Helpers adds a number of convenience methods
 to handle strings and numbers.