luarocks: fix syntax and bump release

"luarocks make" isn't a good enough test of your rockspec file.  Testing
builds on another computer properly pulled it down out of git and
exposed syntax problems.

luarocks/lua-mosquitto-0.2-2.rockspec

@@ -0,0 +1,39 @@
+package = "lua-mosquitto"
+version = "0.2-2"
+source = {
+	url = "git://github.com/flukso/lua-mosquitto",
+	tag = "v0.2"
+}
+description = {
+	summary = "Lua bindings to libmosquitto",
+	detailed = [[
+		Lua bindings to the libmosquitto client library.
+		The parameters to all functions are as per libmosquitto's api
+		only with sensible defaults for optional values, and return
+		values directly rather than via pointers.
+	]],
+	homepage = "https://github.com/flukso/lua-mosquitto",
+	license = "MIT"
+}
+dependencies = {
+	"lua >= 5.1"
+}
+external_dependencies = {
+	LIBMOSQUITTO = {
+		header = "mosquitto.h"
+	}
+}
+build = {
+	type = "builtin",
+	modules = {
+
+		mosquitto = {
+			sources = { "lua-mosquitto.c" },
+			defines = {},
+			libraries = { "mosquitto" },
+			incdirs = { "$LIBMOSQUITTO_INCDIR" },
+			libdirs = { "$LIBMOSQUITTO_LIBDIR" },
+		}
+	}
+}
+