Erlang: add framed_transport and non-strict binary_protocol

Erlang: add framed_transport and non-strict binary_protocol

- thrift_client now takes as its fourth parameter Options: framed, strict_{read,write}, connect_timeout (P.S. fourth param used to be Timeout)
- binary protocol now takes options: strict_{read,write}
- buffers in framed and buffered transport are now iolists and not reversed lists of binaries
- rename buffer in buffered transport "write_buffer" to match framed transport

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@666447 13f79535-47bb-0310-9956-ffa450edef68