Update .hgignore to cover more of autotools and support testing unrealircd by running it out of the repository directory directly.

.hgignore

@@ -7,12 +7,25 @@ syntax: regexp
 ^src/include$
 ^src/version\.c$
 ^unreal$
+^server\.(cert|key|req)\.pem$
+
+# extras archives and builds
+^extras/[^/]*\.(bak|tar)$
+^extras/[^/]*\d/
+^extras/(c-ares|regexp)/
+
+# running unrealircd from the source directory
+^ircd\.(log|pid|tune)$
+^ssl\.rnd$
 
 # General
 \.(o|so|orig|rej)$
 ~$
+(^|/)core(\.\d+)?$
 
 # autotools
+^aclocal\.m4$
+^autom4te\.cache/
 ^config\.(status|log)$
 ^autom4te.cache
 ^aclocal\.m4$