tmux: update to latest version

package/tmux/Makefile

@@ -4,16 +4,16 @@
 include $(ADK_TOPDIR)/rules.mk
 
 PKG_NAME:=		tmux
-PKG_VERSION:=		2.0
+PKG_VERSION:=		2.1
 PKG_RELEASE:=		1
-PKG_HASH:=		795f4b4446b0ea968b9201c25e8c1ef8a6ade710ebca4657dd879c35916ad362
+PKG_HASH:=		31564e7bf4bcef2defb3cb34b9e596bd43a3937cad9e5438701a81a5a9af6176
 PKG_DESCR:=		terminal multiplexer
 PKG_SECTION:=		sys/utils
 PKG_BUILDDEP:=		libevent ncurses
 PKG_DEPENDS:=		libevent libncurses
 PKG_NEEDS:=		threads
 PKG_URL:=		http://tmux.github.io
-PKG_SITES:=		https://github.com/tmux/tmux/releases/download/2.0/
+PKG_SITES:=		https://github.com/tmux/tmux/releases/download/$(PKG_VERSION)/
 
 DISTFILES:=             $(PKG_NAME)-$(PKG_VERSION).tar.gz