Fixed WebContentFile tests after exluding line breaks and also enhanced tests a little.
Fixed WebContentFile tests after exluding line breaks and also enhanced tests a little.

fiuba08/robotframework,waldenner/robotframework,fiuba08/robotframework,waldenner/robotframework,fiuba08/robotframework,waldenner/robotframework,waldenner/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,fiuba08/robotframework,waldenner/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,fiuba08/robotframework