lapis: use last released version instead of devel

frameworks/Lua/lapis/install.sh

@@ -2,4 +2,4 @@
 
 fw_depends lua nginx openresty
 
-sudo luarocks install https://raw.githubusercontent.com/leafo/lapis/master/lapis-dev-1.rockspec
+sudo luarocks install --server=http://rocks.moonscript.org lapis