initial contribution of YAML reader/writer generator based on SnakeYaml
streaming APIs
Merge pull request #6 from simonetripodi/master

Add YAML reader/writer generator based on SnakeYaml streaming APIs
moved Simone Tripodi between developers list
s/stax/snakeyaml
updated Jackson plugin documentation page
JSON non wrapped items have tag name identified by fieldTagName
valuesTagName field is not longer used
YAML non-wrapped items are identified by fieldTagName
fieldTagName check must not consume the stream
added missing sequence check in non-wrapped items
don't ignore XML attributes, they are regular fields in JSON/YAML
check non wrapped items tag name in the canonical way
fixed inModel non-wrappedItem JSON/YAML array/sequence handling
An Object in JSON is a Mapping in YAML