Updated script to remove release scripts and tutorial from zip.

This now ensures that the released sources contain only the demo
and cordova directories.
Added github markdown rendering support for the READMEs.
Removed README.html from the gitignore list.

This is to ensure that WFK source distributions contain these
files.

Also modified the release script to add and remove README.html
files only when preparing WFK releases.
Fixed HTML generation script to not create metadata
Corrected README to describe cordova subdir
WFK2-529 Removed unnecessary staxmapper dependency
WFK2-530 Fixed failing Arquillian tests.

Added the DTO classes to ensure that the tests now pass.