removed Usertext_Filter_Abstract Class
removed Usertext_Filter_Abstract Class

cargomedia/CM,fauvel/CM,vogdb/cm,christopheschwyzer/CM,mariansollmann/CM,alexispeter/CM,mariansollmann/CM,vogdb/cm,fvovan/CM,tomaszdurka/CM,christopheschwyzer/CM,fvovan/CM,fauvel/CM,fauvel/CM,cargomedia/CM,zazabe/cm,vogdb/cm,mariansollmann/CM,vogdb/cm,njam/CM,zazabe/cm,njam/CM,cargomedia/CM,zazabe/cm,njam/CM,tomaszdurka/CM,njam/CM,fvovan/CM,tomaszdurka/CM,alexispeter/CM,christopheschwyzer/CM,fauvel/CM,cargomedia/CM,tomaszdurka/CM,alexispeter/CM,christopheschwyzer/CM,zazabe/cm,vogdb/cm,fvovan/CM,alexispeter/CM,mariansollmann/CM,tomaszdurka/CM,fauvel/CM,njam/CM