Upgrade to v3.23 & new langs

Go, Lua, Perl, Rust and Sass added
Julia lib removed, in main codemirror JS lib now
Languages added, merged & removed

Go, Lua, Perl, Rust and Sass added
Less removed, part of CSS now
Julia no longer loaded as seperate lang file
8 new languages added

C, C++, C#, Go, Lua, Perl, Rust, Sass icons added
Upgrade to CodeMirror 3.23
8 new languages added

C, C++, C#, Go, Lua, Perl, Rust and Sass added
8 new languages added

C, C++, C#, Go, Lua, Perl, Rust and Sass added
Perl has # comments (single & block)
Lua has --[[xyz]] for block, and -- for single lines