Code review comment for lp://staging/~jeremy-munsch/synapse-project/ascii-smart

* fixed non special chars not outputing
* fixed string copy by using string builder
* fixed double and tripple matching to ignore upper letters, Ss,sS,SS,ss => ß

* added some special upper chars, and removed them from lower to honor Caseless regex rule
this is. Allthough double and tripple matching remains caseless as it would
be too much complicated to handle for the program and the user.
http://stackoverflow.com/questions/3371697/replacing-accented-characters-php/33856250#33856250