v1.0.2

Changes since v1.0.0

• Support unpacking from stdin and and plain pbzx files (see new command-line
  parameters)
• Add command-line flags
  • Flag - specifies reading a pbzx file from stdin (currently does
    not support xar input)
  • Flag -n specifies that the file is a pbzx instead of a xar file
  • Flag -h shows usage and some information, then exits
  • Flag -v prints version of pbzx