#103 Optimization for ByteArrayInputStream
Use bufferSize argument
Use ChannelBufferInput when FileInputStream is passed to the unpacker
Added test cases for reading various types of MessageBufferInputs, and fixed some errors
#103: Simplified ArrayBufferInput
#104: Fix assertion condition
#104: Applied review comments. Added some assertions. Fixed MessageBufferBE.slice() to return big-endian buffer
Merge pull request #104 from msgpack/v07-unpack-binary

Optimize unpackBinary