0.2.4
[buildsys] cleanup configure.ac and make the --with-* args more standardized
add verto_set_flags()
increase the timeouts on all the tests since we are all PASS these days
[core] add verto_get_fd_state() and verto_set_fd_state(); enable backends to report fd state
[tests] fix array bounds error when no plugins are built
[all] rename verto_ev_ctx => verto_ctx for shortness