Add Folder Item Update Functionality
Add Folder rename option
Change Rails methods to Ruby
Extend build_xml! to use different sub routines
Add Contact relevant Fields
Extend generic folder for easier access of create_item
Extend generic item type with update
correct item_field_uri_map - There is a different between 'read' and 'update/write' of some EWS-attributes for e.g. physical_address
Add deep_compact for HASH - For EWS-create there is no blank field allowed
Add new templates
Merge Upstream Changes