Added Canvas.connect to register event handlers based on func name.
Added Canvas.connect to register event handlers based on func name.

dchilds7/Deysha-Star-Formation,hronoses/vispy,jay3sh/vispy,jdreaver/vispy,ghisvail/vispy,bollu/vispy,srinathv/vispy,RebeccaWPerry/vispy,sbtlaarzc/vispy,kkuunnddaannkk/vispy,hronoses/vispy,jdreaver/vispy,jdreaver/vispy,kkuunnddaannkk/vispy,drufat/vispy,inclement/vispy,QuLogic/vispy,inclement/vispy,michaelaye/vispy,Eric89GXL/vispy,ghisvail/vispy,Eric89GXL/vispy,QuLogic/vispy,sbtlaarzc/vispy,sbtlaarzc/vispy,sh4wn/vispy,Eric89GXL/vispy,RebeccaWPerry/vispy,julienr/vispy,julienr/vispy,RebeccaWPerry/vispy,dchilds7/Deysha-Star-Formation,QuLogic/vispy,jay3sh/vispy,srinathv/vispy,julienr/vispy,srinathv/vispy,hronoses/vispy,bollu/vispy,sh4wn/vispy,inclement/vispy,sh4wn/vispy,ghisvail/vispy,michaelaye/vispy,dchilds7/Deysha-Star-Formation,drufat/vispy,kkuunnddaannkk/vispy,drufat/vispy,michaelaye/vispy,bollu/vispy,jay3sh/vispy