xterm: bump to version 320

Also switch to http site.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/xterm/xterm.hash

@@ -1,2 +1,2 @@
 # Locally calculated after checking pgp signature
-sha256	1dbf1e93796c1b71b22b84e82eb58bcf20a14a7f365158819f3b4dbb29fe93f0	xterm-314.tgz
+sha256	a60dbb574334c081425fa30f011cd9f571e3be7a91e2a84e252461798bce24a7	xterm-320.tgz

package/xterm/xterm.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-XTERM_VERSION = 314
+XTERM_VERSION = 320
 XTERM_SOURCE = xterm-$(XTERM_VERSION).tgz
-XTERM_SITE = ftp://invisible-island.net/xterm
+XTERM_SITE = http://invisible-mirror.net/archives/xterm
 XTERM_DEPENDENCIES = ncurses xlib_libXaw host-pkgconf
 XTERM_LICENSE = MIT
 XTERM_LICENSE_FILES = version.c