lua-penlight: update to 1.6.0

Full changelog at https://github.com/stevedonovan/Penlight/blob/master/CHANGELOG.md#160-2018-11-23

Interesting changes:
* version numbers fixed
* import_into includes everything properly
* more compat with lua 5.1

Includes a switch to codeload to avoid the git cloning and mirror
hashes.

Signed-off-by: Karl Palsson <karlp@etactica.com>

lang/lua-penlight/Makefile

@@ -8,15 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=lua-penlight
-PKG_VERSION:=1.5.4
+PKG_VERSION:=1.6.0
 PKG_RELEASE:=1
 
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=https://github.com/stevedonovan/Penlight
-PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=$(PKG_VERSION)
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_MIRROR_HASH:=cd9f25981b12022b66180a3b8df46840be1b3e2a857b8d9909b2d5601be0ead4
+PKG_BUILD_DIR:=$(BUILD_DIR)/Penlight-$(PKG_VERSION)
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/stevedonovan/Penlight/tar.gz/$(PKG_VERSION)?
+PKG_HASH:=a552d0a314f7aa94c9579746996a7aad4ed59f3187f33b4735d3e323e27354b0
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=LICENSE.md