Fixed Bug 7838 (addendum)

mon_trans_disable_in_gvg: yes no longer displays the error message repeatedly to no purpose.
Special Thanks to kyeme
http://hercules.ws/board/tracker/issue-7838-wrong-message/

Signed-off-by: shennetsind <ind@henn.et>
Fixed Bug 7336

Enabled gvg_noparty mapflag on gvg zones, special thanks to kyeme.
http://hercules.ws/board/tracker/issue-7336-gvg-noparty-is-missing/

Signed-off-by: shennetsind <ind@henn.et>
Fixed Bug 7700

@useskill adjusted to update invincibility state.
http://hercules.ws/board/tracker/issue-7700-using-useskill-command/

Signed-off-by: shennetsind <ind@henn.et>
Fixed Bug 7740

Updated conf/battle/misc.conf manner_system to reflect latest official server behavior.
Special Thanks to kyeme.
http://hercules.ws/board/tracker/issue-7740-mute/

Signed-off-by: shennetsind <ind@henn.et>