chop useless call to getrlimit() and cleanup includes
cleanup loading of the configfile and remove some includes
GC some variables and headers
get rid of some headers and comments
syslog is needed in header already
move saving of starttime to world() out of main(), GC some dead code
fix a typo in logmessage and demote priority
Notify clients only after new monsters are inserted
Update item stacks on map

Fix #10154
Update movement cost when items on tiles change