add clean/install/uninstall targets, more verbose
add format version
-add option --nopause
 -sender will start sending audio immediately
  (without sending /offer or waiting for /accept)
 -sender will not pause upon receiver request /pause
 -sender will not quit upon receiver request /deny

this option is useful when sender broadcasts to multiple receivers.
sender should not pause or quit if one of the receivers requests that.

internal changes:

/offer fiiiifh
-> first f is format version

/audio hhtib*
 -> first i is sampling rate

a receiver can now get sampling rate and
period size (=blob size/bytes per sampels) out of /audio messages
this is useful when sender is broadcasting and not negotiating / offering audio

network transfer size calculation updated, respect MTU size, headers etc

-removed WIN32 defs
-minor cleanup, text
-allow local period size to be different from sender's
 -sampling rate must still be the same
 -period sizes must not be "odd"-sized (if that's possible say with dummy backend)
 -this will work:
  -sender 128, receiver 512
  -sender 1024, receiver 128  etc.

-add option --close
 -receiver will close down if offered audio (/offer) is incompatible
  instead of telling sender to stop (/deny)

-add option --rere
 -receiver will rebuffer on sender restart, up to value set with --pre

-add option --reuf
 -receiver will rebuffer if there was an underflow (not enough data),
  up to value set with --pre

-renamed optin --mbuff to --max

internal changes:

-handle new /offer
-handle new /audio

-removed WIN32 defs
-minor cleanup, text