rm set_fcitx and continue to use scim defaultly

modified:   install_shell/create_users.sh
	deleted:    install_shell/set_fcitx.sh
	new file:   install_shell/set_tcsh_encode.sh
	modified:   setup.sh

install_shell/set_tcsh_encode.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if test "$1" != 'tcsh';then
+    exit 
+fi
+
+if grep -q -v "LC_CTYPE" /etc/csh.cshrc;then
+	echo "setenv LC_CTYPE zh_CN.gb18030">>/etc/csh.cshrc
+fi
+