bump up version number to 0.4.0
bump up version number to 0.4.0

Signed-off-by: Lai Jiangshan <b337eedf453972390e4695e362aeea2634ef4e0c@gmail.com>

feiskyer/hyper,gao-feng/hyper,gao-feng/hyper-public,bergwolf/hyperd,hyperhq/hyper,feiskyer/hyper,gao-feng/hyper,laijs/hyperd,bergwolf/hyperd,ZJU-SEL/hyper,hyperhq/hyper,WIZARD-CXY/hyper,ZJU-SEL/hyper,laijs/hyperd,ZJU-SEL/hyper,gnawux/hyper,gnawux/hyper,laijs/hyper,hyperhq/hyperd,laijs/hyper,gao-feng/hyper,gnawux/hyper,gao-feng/hyper-public,gao-feng/hyper,laijs/hyper,ZJU-SEL/hyper,hyperhq/hyperd,bergwolf/hyperd,bergwolf/hyperd,WIZARD-CXY/hyper,hyperhq/hyperd,feiskyer/hyper,laijs/hyperd,WIZARD-CXY/hyper,WIZARD-CXY/hyper,hyperhq/hyper,hyperhq/hyper,laijs/hyper,feiskyer/hyper,gao-feng/hyper-public