Add xml parsing to s3 website module
New methods to get and set website configurations

The following methods are defined:
- get_website_configuration_xml
- get_website_configuration_obj
- set_website_configuration
- set_website_configuration_xml
Merge branch 'nathan11g-website' into develop

* nathan11g-website:
  New methods to get and set website configurations
  Add xml parsing to s3 website module