Added support for TThriftString in list.
Added support for TThriftString in list.

rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift,rmhartog/thrift