cleanup; move ./etc into ./samples and mark 'unsupported'

samples/b64.lua

@@ -0,0 +1,19 @@
+-----------------------------------------------------------------------------
+-- Little program to convert to and from Base64
+-- LuaSocket sample files
+-- Author: Diego Nehab
+-----------------------------------------------------------------------------
+local ltn12 = require("ltn12")
+local mime = require("mime")
+local source = ltn12.source.file(io.stdin)
+local sink = ltn12.sink.file(io.stdout)
+local convert
+if arg and arg[1] == '-d' then
+    convert = mime.decode("base64")
+else
+    local base64 = mime.encode("base64")
+    local wrap = mime.wrap()
+    convert = ltn12.filter.chain(base64, wrap)
+end
+sink = ltn12.sink.chain(convert, sink)
+ltn12.pump.all(source, sink)