pev v2.0

News: breaking ABI change, timer callbacks are now passed the timer
id as the first argument instead of the timeout value.

Changes

• Timer callbacks are now passed the timer id as their first argument,
  instead of the timeout value. This to allow callbacks an easy way
  to call pev_timer_set()
• Add optional destructor callback for private socket, signal, and
  timer data, by Jacques de Laval, Westermo

Fixes

• The first argument to select() can now handle users calling
  pev_sock_del(). May fix issues seen in this use-case