• update to 3.37
• change MASTER_SITE to GitHub
• use autoreconf
• adjust pkg-desc

Changelog:
3.37: - print rtmetric and rtflow samples

• include timestamp in grep-friendly (-g) output

3.36: - incorporate buffer-overrun protection suggestions from Andre Gruenenberg

• incorporate portability changes from Rowan Thorpe
• incorporate IPv6 forwarding changes from Rowan Thorpe
• print IPID field from IPv4 sampled headers

3.35: - add Broadcom ASIC counters structure

• add TCP/IP counters structure

3.34: - decode new counters in host cpu struct (steal, guest, and guest_nice)
3.33: - bugfix: app-sample status and duration_uS fields were reversed