Add create2, better pushing of stdin
EOF behavior for stdin; Fix some bugs;
Add CallbackNotify2 module (server-side job rendering)
Update the Demo
Update the demo, ready to stress-test
Execute callbacks in separate threads
Found multithreading bug, disable the tests for now
stress.sh: stress testing script for demo/Demo.exe
Fix the pipe handle leak
Better exception handling
FFI: fix the segfaults at startup
Work in progress

error at urweb.c:

  if (ctx->transaction_started) {
    int code = ctx->app->db_commit(ctx);

    if (code) {
      if (code == -1)
	  return 1
	  ...
FFI: fix the job leak under heavy load
Use more dangerous but more correct locking strategy

tryDeref and create now locks the whole job for the current transaction
Turn back all the tests
FFI: sleep 1 -> usleep 100
UW: update the patchset
Move back atomic job counter, remove some debug
FFI: update the jobset while in transaction

Introduce the job set with reference counting, compatible with Ur/Web
transaction model
FFI: cosmetic changes - simplify notifiers' interface