This version adds support for escape characters in replacement strings. For example a:this\,that\:end is valid and replaces "a" with this,that:end

Add support for simpler mapping: e:é:è:e is now equivalent to e:é,é:è,è:e
Change the default mapping to e:é:è:ê:ë:e,a:à:â:a,c:ç,o:ô:œ:o,u:ù:û:u,i:î:ï:i,$:€,d:°