Fixed an issue where the gzfile wouldn't be initialized to null
Added NbtBuffer class, for parsing directly from a buffer.  Also fixed a
potential memory leak in NbtFile.
Added support for TAG_INT_ARRAY.  Finished NbtBuffer parsing.
Fixed bug when parsing the int array, and also its toString function
Fixed potential memory corruption
Fixed tabs
Improved toString so its readable.
Changed byte array to use an actual byte array behidn the scenes
Added size accessor method
Fix some warning with gcc 4.8
Add missing file in FILES in Makefile