Remove superfluous memory allocation. Valgrind complains (not sure why)
kick the player when they try grabbing a distant flag instead of just logging
Merge branch 'v2_4_x' of github.com:BZFlag-Dev/bzflag-import-3 into v2_4_x
Automatically remove trailing slash when using autocomplete for directory names
Don't allow muted players with ADMINMESSAGESEND to send PMs to hidden admins

This prevents players who can't talk from trying to /msg everyone to identify hidden admins
Allow players to send pms to admins that aren't hidden
Remove another useless malloc/free.
Still don’t know why valgrind complains.
Merge branch 'v2_4_x' of https://github.com/BZFlag-Dev/bzflag-import-3 into v2_4_x