- iso2utf8 ONE TIME
- check that file descriptor are released on exec()
 Currently, programs can use fcntl() to change an open file descriptor to have the
close-on-exec property,
- class_get() for clients
- rewrite titlebar
- rewrite tags handling ala xmonad
- voir pour maximize en Lua, il doit manquer des fct

- widget error log -> dup() stderr and -> widget textbox like --> reverted bad idea
  can make some deadlock
- switch to SOCK_STREAM (?)
