Commit Briefs
fix some logging
- we can't use log_* or fatal() before logger_init - err -> errx if errno isn't involved
list instead of fixed-size array for vhosts and locations
saves some bytes of memory and removes the limit on the maximum number of vhosts and location blocks.
give each server process its own socket for the executor
this fixes a bug introduced with the prefork mechanics: every server process shared the same socket, and this would cause a race condition when multiple server processes asked for a script cgi being executed. This gives each server process its own socket to talk to the executor, so the race cannot happen.
fix "first location" bug
reported by devel at datenbrei dot de. The first location would overwrite the default value for a server, triggering the "`foo' rule specified more than once" error. This also needed a small tweak on how we match locations to avoid breaking other tests.