Allow for localization of description text

My requirement is to be able to localize the descriptions in Verbs and
Global parameters. Being able to inherit from these attributes and
override the description allows me to use a resource manage (or
database/XML whatever) to retrieve the string. This relates to issue
#26.
Allow for localization of parameter description

Missed this one, thought it was the default component description
attribute. Applied the same changes to allow developers to override the
description by inheriting and overriding.
Merge pull request #27 from brutaldev/master

Allow for localization of description text