Implement negation for TextFilter.
Implement negation for TextFilter.

kleintom/dxr,pelmers/dxr,pombredanne/dxr,pelmers/dxr,jay-z007/dxr,jbradberry/dxr,gartung/dxr,jay-z007/dxr,kleintom/dxr,jay-z007/dxr,pombredanne/dxr,gartung/dxr,pelmers/dxr,jbradberry/dxr,gartung/dxr,kleintom/dxr,jbradberry/dxr,kleintom/dxr,jay-z007/dxr,jbradberry/dxr,bozzmob/dxr,bozzmob/dxr,bozzmob/dxr,jay-z007/dxr,gartung/dxr,jay-z007/dxr,bozzmob/dxr,jbradberry/dxr,pombredanne/dxr,pelmers/dxr,jbradberry/dxr,gartung/dxr,bozzmob/dxr,pelmers/dxr,pombredanne/dxr,pombredanne/dxr,kleintom/dxr,pombredanne/dxr,gartung/dxr,kleintom/dxr,bozzmob/dxr,pelmers/dxr,gartung/dxr,kleintom/dxr,bozzmob/dxr,jbradberry/dxr,jay-z007/dxr,pelmers/dxr,pombredanne/dxr