Fix a bug in romanization by converting all strings to unicode,fix #182
Fix a bug in romanization by converting all strings to unicode,fix #182

(Romanization of some characters of ISO233 raises an exception )
muslih/alfanous,keelhaule/alfanous,abougouffa/alfanous,muslih/alfanous,muslih/alfanous,saifmahamood/alfanous,keelhaule/alfanous,saifmahamood/alfanous,abougouffa/alfanous,muslih/alfanous,abougouffa/alfanous,abougouffa/alfanous,muslih/alfanous,abougouffa/alfanous,keelhaule/alfanous,muslih/alfanous,saifmahamood/alfanous,keelhaule/alfanous,saifmahamood/alfanous,keelhaule/alfanous,abougouffa/alfanous,keelhaule/alfanous,saifmahamood/alfanous,keelhaule/alfanous,saifmahamood/alfanous,saifmahamood/alfanous,saifmahamood/alfanous,abougouffa/alfanous,muslih/alfanous