added 'close' helper
added 'close' helper

alcarraz/jPOS,bharavi/jPOS,jpos/jPOS,c0deh4xor/jPOS,sebastianpacheco/jPOS,jpos/jPOS,sebastianpacheco/jPOS,alcarraz/jPOS,atancasis/jPOS,alcarraz/jPOS,c0deh4xor/jPOS,yinheli/jPOS,barspi/jPOS,c0deh4xor/jPOS,bharavi/jPOS,poynt/jPOS,atancasis/jPOS,bharavi/jPOS,yinheli/jPOS,yinheli/jPOS,barspi/jPOS,barspi/jPOS,jpos/jPOS,sebastianpacheco/jPOS,poynt/jPOS,atancasis/jPOS,poynt/jPOS