
* Version 1.2 :
    Check for nanosleep, and use it in place of usleep whenever
possible. See the new wait_seconds() function.
    Default concurrency limit bumped to 10.

* Version 1.1 :
    Implement concurrency limit : new --with-concurrency autoconf switch.
    Dmalloc support.

* Version 1.0 :
    Initial release.
