v0.4.0

Added

• BpfProgram now has __getitem__, __len__, __init__, __iter__, and can be turned
  into a list.
• dumps can now dump the formats that debug_dump used to output and return them as a string
  instead of printing to stdout.
• Platform specific functions Pcap.set_protocol_linux, Pcap.get_selectable_fd,
  Pcap.get_required_select_timeout, and Pcap.getevent.
• cypcap.bpf module with constants and utility functions for manually written BPF.

Changed

• Classes which should not be instantiated from Python directly should now raise
  (Pcap & Dumper).
• cypcap is now a package rather than a single file module, API remains the same.

Removed

• debug_dump is merged into dumps by a new type parameter.

Fixed

• set_config, set_pre_config had wrong typing. (Although those are not exported to an
  interface file yet).