Add lots of unique tags to error log messages

Cleanup effort in prep for GA push: Trim trailing whitespace... no func change

Use the new APLOG_USE_MODULE/AP_DECLARE_MODULE macros everywhere to take advantage of per-module loglevels

Convert events to have an associated pool. * server/mpm/simple/simple_types.h (simple_timer_t): Add Pool and a pointer to the associated simple core. (simple_core_t): Remove dead timer ring, no recycling of timer events for now. * server/mpm/simple/simple_event.h: Update register_timer signature with pool. * server/mpm/simple/simple_event.c (simple_register_timer): Allocate the event structure out of the pool, and when this pool is destroyed, unregister the timer. (simple_timer_run): New util function for running a timer and cleaning up the pool callbacks. * server/mpm/simple/simple_core.c (simple_core_init): Remvoe dead timer ring * server/mpm/simple/simple_run.c (simple_main_setup_timers): Pass in pool to register call. (simple_timer_invoke): Use new simple_timer_run function. (simple_child_loop): Remove dead timer ring. * server/mpm/simple/simple_io.c (simple_io_process): Pass in pool when registering timers.

Basic support for spawning children porcesses via fork() and killing them with kill().

reindent according to our coding style: <http://httpd.apache.org/dev/styleguide.html> for i in `ls *.h *.c`; do indent -i4 -npsl -di0 -br -nce -d0 -cli0 -npcs -nfc1 -nut ${i}; done

Improve ability to compile on C90 Compilers. * Move all variable declartions to the top of their blocks. * Remove traiing comma on enum * Only use C90 style comments.

* simple_io.c line 111 and 145 cause a build falure with --enable-maintainer-mode . * simple_children.c should include simple_children.h. * simple_io_timeot_cb should be static. Noticed by: Takashi Sato

Add a work in progress, a completely new, "Simple MPM".