Merge pull request #7 from chengstory/v3_pipu_protocol_buffers

1. fixes TextReader and TextFieldReader can't read csb.
1. fixes parser bug.
Merge pull request #8 from chengstory/FixesParserBug

1. fixes parser bug.
Modify CSLoader for parsing SimpleAudio and SingleNode
1. Modify color vector of panel's BackGround default value.