make `requires_ipython` visible by adding to __init__.py
make `requires_ipython` visible by adding to __init__.py

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