Commented blank lines

A bit hard to remember what the lines signify. Added comments to lines
without links, form of <target via source>.
Meta circular examples

Added ruby-ruby (rubinius); scala-scala (metascala); C#-C# (mono C#);
clojure-clojure (cinc); & lua-lua (metalua).
Merge branch 'nz' of https://github.com/Nzen/langlangmatrix into Nzen-nz

Conflicts:
	index.html