lua-bencode: download .tar.gz instead of using hg

Avoid using 'hg' (Mercurial) to download sources.

'hg' is not an official prerequisite and it is not installed
in all buildslaves in Openwrt and LEDE buildbots, which
leads to frequent build failures.

Download the .tar.gz source archive instead.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

lang/lua-bencode/Makefile

@@ -11,11 +11,10 @@ PKG_NAME:=lua-bencode
 PKG_VERSION:=2.1.0
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_URL:=https://bitbucket.org/wilhelmy/lua-bencode
-PKG_SOURCE_PROTO:=hg
-PKG_SOURCE_VERSION:=500243383cb6acbddd3cf12aee6e4667aab53324
+PKG_SOURCE_URL:=https://bitbucket.org/wilhelmy/lua-bencode/downloads/
+PKG_HASH:=4624f33ff026bc62990a323ee4953e42d68430c38a1a4726c9cfd77c085b1422
 PKG_LICENSE:=MIT
 
 include $(INCLUDE_DIR)/package.mk